5G radio frequency circuit and intelligent terminal

Abstract

The utility model provides a 5G radio frequency circuit and an intelligent terminal, a first main set antenna of the 5G radio frequency circuit is connected with an output end of a first power amplifier, an input end of the first power amplifier is connected with a radio frequency transceiver, and a power supply end of the first power amplifier is directly connected with a radio frequency power supply; the second master antenna is connected with the output end of the second power amplifier, and the input end of the second power amplifier is connected with the radio frequency transceiver; the power supply end of the second power amplifier is directly connected with the radio frequency power supply; the first power amplifier is a 5G LMHB power amplifier, and / or the second power amplifier is a 5G UHB power amplifier. According to the technical scheme provided by the invention, a special power supply management chip is not needed to provide power supply support, so that the product cost and the ornament area are effectively reduced, the miniaturization design of the mainboard is facilitated, the design difficulty of the product is reduced, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the field of radio frequency technology, and particularly to a 5G radio frequency circuit and an intelligent terminal. Background Art

[0002] With the development of mobile wireless communication, people's requirements for the appearance design and cost performance of intelligent terminals are getting higher and higher, which brings many difficulties to the design of intelligent terminals.

[0003] In the process of conceiving and implementing the present application, the inventors found that there are at least the following problems: With the continuous increase of the functional components of intelligent terminals, in order to provide users with a better application experience and without changing the overall size of the machine, the main board needs to be miniaturized as much as possible. In the 5G radio frequency circuit, its PA power supply requires a dedicated power management chip to provide a stable voltage. However, this method requires an additional radio frequency power management chip, which is costly and takes up a large amount of board area, and is not conducive to the development direction of miniaturization of the main board.

[0004] The foregoing description is for general background information and does not necessarily constitute prior art. Summary of the Invention

[0005] In view of the above technical problems, the present application provides a 5G radio frequency circuit, including a radio frequency power supply, a first main set antenna, a second main set antenna, a first power amplifier, a second power amplifier, and a radio frequency transceiver;

[0006] The first main set antenna is connected to the output end of the first power amplifier, the input end of the first power amplifier is connected to the radio frequency transceiver, and the power supply end of the first power amplifier is directly connected to the radio frequency power supply;

[0007] The second main set antenna is connected to the output end of the second power amplifier, the input end of the second power amplifier is connected to the radio frequency transceiver; the power supply end of the second power amplifier is directly connected to the radio frequency power supply;

[0008] The first power amplifier is a 5G LMHB power amplifier, and / or the second power amplifier is a 5G UHB power amplifier.

[0009] Optionally, in the circuit where the power supply end of the first power amplifier is directly connected to the radio frequency power supply, no power management chip is provided for SA or NSA network networking.

[0010] Optionally, in the circuit where the power supply end of the second power amplifier is directly connected to the radio frequency power supply, no power management chip is provided for SA or NSA network networking.

[0011] Optionally, the RF power supply includes a first RF power supply and a second RF power supply. The power supply terminal of the first power amplifier is directly connected to the first RF power supply; the power supply terminal of the second power amplifier is directly connected to the second RF power supply.

[0012] Optionally, the 5G RF circuit further includes a first capacitor. The first end of the first capacitor is connected to the power supply terminal of the first power amplifier, and the second end of the first capacitor is grounded.

[0013] Optionally, the 5G RF circuit further includes a second capacitor. The first end of the second capacitor is connected to the power supply terminal of the second power amplifier, and the second end of the second capacitor is grounded.

[0014] Optionally, the 5G RF circuit further includes a first duplexer. The first end of the first duplexer is connected to the first main set antenna, the second end of the first duplexer is connected to the output terminal of the first power amplifier, and the third end of the first duplexer is connected to the RF transceiver.

[0015] Optionally, the 5G RF circuit further includes a second duplexer. The first end of the second duplexer is connected to the second main set antenna, the second end of the second duplexer is connected to the output terminal of the second power amplifier, and the third end of the second duplexer is connected to the RF transceiver.

[0016] Optionally, the 5G RF circuit further includes a double-pole double-throw switch and a first diversity antenna. The first end of the double-pole double-throw switch is connected to the first diversity antenna, the second end of the double-pole double-throw switch is connected to the second main set antenna, the third end of the double-pole double-throw switch is connected to the RF transceiver, and the fourth end of the double-pole double-throw switch is connected to the second duplexer.

[0017] Optionally, the 5G RF circuit further includes a first receiving module. The first end of the first receiving module is connected to the third end of the double-pole double-throw switch to receive the diversity reception signal; the second end of the first receiving module is connected to the RF transceiver to process the diversity reception signal of the first frequency band; the third end of the first receiving module is connected to the RF transceiver to process the diversity reception signal of the second frequency band.

[0018] Optionally, the 5G RF circuit further includes a first filter and a second filter.

[0019] The first filter is connected between the first duplexer and the RF transceiver and is used to filter the main set reception signal of the third frequency band.

[0020] The second filter is connected between the second duplexer and the RF transceiver and is used to filter the main set reception signal of the fourth frequency band.

[0021] The present application also provides an intelligent terminal, and the intelligent terminal includes a 5G radio frequency circuit as described in any one of the above.

[0022] For the 5G radio frequency circuit and the intelligent terminal provided by the present application, the output end of the first power amplifier is connected to the first main antenna, the input end of the first power amplifier is connected to the radio frequency transceiver, and the power supply end of the first power amplifier is directly connected to the radio frequency power supply; the output end of the second power amplifier is connected to the second main antenna, the input end of the second power amplifier is connected to the radio frequency transceiver; the power supply end of the second power amplifier is directly connected to the radio frequency power supply; the first power amplifier is a 5G LMHB power amplifier, and / or, the second power amplifier is a 5G UHB power amplifier; there is no need for a dedicated power management chip to provide power support, effectively reducing the product cost and the occupied area, facilitating the miniaturized design of the main board, reducing the design difficulty of the product, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present application and, together with the specification, are used to explain the principles of the present application. To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0024] Figure 1 Schematic diagram of the hardware structure of a mobile terminal for implementing various embodiments of the present application;

[0025] Figure 2 Schematic diagram of a communication network system architecture provided by an embodiment of the present application;

[0026] Figure 3 Schematic connection diagram of a 5G radio frequency circuit according to an embodiment of the present application Figure 1 ;

[0027] Figure 4 Schematic connection diagram of a 5G radio frequency circuit according to an embodiment of the present application Figure 2 ;

[0028] Figure 5 Schematic diagram of the radio frequency circuit of an intelligent terminal according to an embodiment of the present application.

[0029] The realization of the purpose of the present application, functional features and advantages will be further described in conjunction with the embodiments with reference to the drawings. Through the above-mentioned drawings, the specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and the text description are not intended to limit the scope of the concept of the present application in any way, but to explain the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0030] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0031] It should be noted that in this document, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including the element. In addition, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined based on their explanations in the specific embodiments or further in combination with the context of the specific embodiments.

[0032] It should be understood that although terms such as first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this document, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining". Furthermore, as used in this document, the singular forms "a", "an", and "the" are also intended to include the plural forms unless the context indicates otherwise. It should be further understood that the terms "comprising", "including" indicate the presence of the stated features, steps, operations, elements, components, items, kinds, and / or groups, but do not preclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms "or", "and / or", "including at least one of the following" and the like used in this application may be interpreted inclusively, or mean any one or any combination. For example, "including at least one of the following: A, B, C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C", and again, "A, B or C" or "A, B and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C". An exception to this definition occurs only when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0033] It should be understood that although the steps in the flowchart in the embodiments of this application are shown in sequence according to the indication of the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless there is a clear indication in this document, the execution of these steps has no strict order limit, and they can be executed in other orders. Moreover, at least a part of the steps in the figure may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same moment, but can be executed at different moments, and their execution order is not necessarily sequential, but can be executed alternately or in turn with at least a part of other steps or sub-steps or stages of other steps.

[0034] Depending on the context, the words "if", "when" as used herein may be interpreted as "when" or "while" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detecting (stated condition or event)" may be interpreted as "when determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)".

[0035] It should be understood that the specific embodiments described herein are merely for explaining the present application and are not used to limit the present application.

[0036] In the following description, suffixes such as "module", "component", or "unit" used to denote elements are only for the convenience of describing the present application and have no specific meaning in themselves. Therefore, "module", "component", or "unit" can be used interchangeably.

[0037] The intelligent terminal involved in the present application can be the first terminal or the second terminal. Specifically, what is meant needs to be clarified in combination with the context. Optionally, the intelligent terminal can be an intelligent terminal, and the intelligent terminal can be implemented in various forms. For example, the intelligent terminal described in the present application can include intelligent terminals such as mobile phones, tablet computers, laptop computers, palmtop computers, personal digital assistants (PDAs), portable media players (PMPs), navigation devices, wearable devices, intelligent bracelets, pedometers, etc., as well as fixed terminals such as digital TVs and desktop computers.

[0038] In the following description, the mobile terminal will be taken as an example for illustration. Those skilled in the art will understand that, except for the components specifically for mobile purposes, the structure according to the embodiments of the present application can also be applied to fixed-type terminals.

[0039] Please refer to Figure 1 , which is a schematic hardware structure diagram of a mobile terminal for implementing various embodiments of the present application. The mobile terminal 100 may include: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an A / V (audio / video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111, etc. Those skilled in the art can understand that Figure 1 the mobile terminal structure shown in

[0040] does not constitute a limitation on the mobile terminal. The mobile terminal may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements. Figure 1 The following specifically introduces each component of the mobile terminal:

[0041] The radio frequency unit 101 can be used for receiving and transmitting information or signals during a call. Specifically, after receiving the downlink information of the base station, it is sent to the processor 110 for processing; in addition, the uplink data is sent to the base station. In addition, the radio frequency unit 101 can also communicate with the network and other devices through wireless communication. The above wireless communication can use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution), 5G, and 6G, etc.

[0042] WiFi belongs to short-range wireless transmission technology. The mobile terminal can help users send and receive emails, browse the web, and access streaming media through the WiFi module 102. It provides users with wireless broadband Internet access. Although Figure 1 the WiFi module 102 is shown, it can be understood that it does not belong to an essential component of the mobile terminal and can be omitted entirely within the scope of not changing the essence of the invention according to needs.

[0043] The audio output unit 103 can convert the audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output it as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, and other modes. Moreover, the audio output unit 103 can also provide an audio output related to a specific function executed by the mobile terminal 100 (such as a call signal reception sound, a message reception sound, etc.). The audio output unit 103 can include a speaker, a buzzer, etc.

[0044] The A / V input unit 104 is used to receive audio or video signals. The A / V input unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042. The GPU 1041 processes the image data of a still picture or video obtained by an image capturing device (such as a camera) in a video capture mode or an image capture mode. The processed image frames can be displayed on the display unit 106. The image frames processed by the GPU 1041 can be stored in the memory 109 (or other storage media) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sounds (audio data) via the microphone 1042 in operation modes such as a phone call mode, a recording mode, a voice recognition mode, etc., and can process such sounds into audio data. The processed audio (voice) data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 101 in the case of the phone call mode and output. The microphone 1042 can implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) the noise or interference generated during the reception and transmission of audio signals.

[0045] The mobile terminal 100 further includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor. Optionally, the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 1061 and / or the backlight when the mobile terminal 100 is moved to the ear. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary, and can be used for applications that identify the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as a pedometer, tapping), etc.; as for other sensors that the mobile phone can also be configured with, such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., they will not be elaborated here.

[0046] The display unit 106 is used to display the information input by the user or the information provided to the user. The display unit 106 may include a display panel 1061, and the display panel 1061 can be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), etc.

[0047] The user input unit 107 can be used to receive input digital or character information and generate key signal inputs related to the user settings and function control of the mobile terminal. Optionally, the user input unit 107 can include a touch panel 1071 and other input devices 1072. The touch panel 1071, also known as a touch screen, can collect touch operations of the user on or near it (such as operations of the user using a finger, a stylus, or any suitable object or accessory on or near the touch panel 1071), and drive the corresponding connection device according to a preset program. The touch panel 1071 can include two parts: a touch detection device and a touch controller. Optionally, the touch detection device detects the touch orientation of the user, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into touch point coordinates, and then sends it to the processor 110, and can receive and execute the commands sent by the processor 110. In addition, the touch panel 1071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 can also include other input devices 1072. Optionally, the other input devices 1072 can include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, power on / off keys, etc.), a trackball, a mouse, a joystick, etc., and specific details are not limited here.

[0048] Optionally, the touch panel 1071 can cover the display panel 1061. After the touch panel 1071 detects a touch operation on or near it, it transmits the operation to the processor 110 to determine the type of touch event. Subsequently, the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of touch event. Although in Figure 1 the touch panel 1071 and the display panel 1061 are implemented as two independent components to realize the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated to realize the input and output functions of the mobile terminal, and specific details are not limited here.

[0049] The interface unit 108 serves as an interface through which at least one external device can be connected to the mobile terminal 100. For example, the external device can include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headset port, and so on. The interface unit 108 can be used to receive inputs from external devices (such as data information, power, etc.) and transmit the received inputs to one or more components within the mobile terminal 100 or can be used to transmit data between the mobile terminal 100 and external devices.

[0050] The memory 109 can be used to store software programs and various data. The memory 109 mainly includes a program storage area and a data storage area. Optionally, the program storage area can store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the mobile phone (such as audio data, phone book, etc.). In addition, the memory 109 can include high-speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0051] The processor 110 is the control center of the mobile terminal, connecting various parts of the entire mobile terminal through various interfaces and lines. By running or executing software programs and / or modules stored in the memory 109, and calling data stored in the memory 109, it executes various functions of the mobile terminal and processes data, thereby performing overall monitoring of the mobile terminal. The processor 110 can include one or more processing units; preferably, the processor 110 can integrate an application processor and a modulation / demodulation processor. Optionally, the application processor mainly processes the operating system, user interface, and application programs, etc., and the modulation / demodulation processor mainly processes wireless communication. It can be understood that the above modulation / demodulation processor may not be integrated into the processor 110.

[0052] The mobile terminal 100 can also include a power supply 111 (such as a battery) for powering each component. Preferably, the power supply 111 can be logically connected to the processor 110 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system.

[0053] Although Figure 1 not shown, the mobile terminal 100 can also include a Bluetooth module, etc., which will not be elaborated here.

[0054] To facilitate understanding of the embodiments of the present application, the communication network system on which the mobile terminal of the present application is based will be described below.

[0055] Please refer to Figure 2 , Figure 2 which is an architecture diagram of a communication network system provided by an embodiment of the present application. The communication network system is an LTE system of the general mobile communication technology. The LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and the operator's IP service 204 that are communicatively connected in sequence.

[0056] Optionally, the UE 201 may be the aforementioned terminal 100, which will not be elaborated herein.

[0057] The E-UTRAN 202 includes an eNodeB 2021 and other eNodeBs 2022, etc. Optionally, the eNodeB 2021 may be connected to other eNodeBs 2022 through a backhaul (e.g., the X2 interface), the eNodeB 2021 is connected to the EPC 203, and the eNodeB 2021 may provide access for the UE 201 to the EPC 203.

[0058] The EPC 203 may include a Mobility Management Entity (MME) 2031, a Home Subscriber Server (HSS) 2032, other MMEs 2033, a Serving Gate Way (SGW) 2034, a PDN Gate Way (PGW) 2035, a Policy and Charging Rules Function (PCRF) 2036, etc. Optionally, the MME 2031 is a control node that processes the signaling between the UE 201 and the EPC 203 and provides bearer and connection management. The HSS 2032 is used to provide some registers to manage functions such as a home location register (not shown in the figure) and stores some user-specific information such as service characteristics and data rates. All user data may be sent through the SGW 2034. The PGW 2035 may provide IP address allocation for the UE 201 and other functions. The PCRF 2036 is a policy and charging control policy decision point for service data flows and IP bearer resources, and it selects and provides available policy and charging control decisions for a policy and charging enforcement function unit (not shown in the figure).

[0059] The IP service 204 may include the Internet, an intranet, an IP Multimedia Subsystem (IMS), or other IP services, etc.

[0060] Although the above has been described by taking the LTE system as an example, those skilled in the art should be aware that the present application is not only applicable to the LTE system, but also applicable to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, 5G, and future new network systems (such as 6G), etc., which are not limited herein.

[0061] Based on the above mobile terminal hardware structure and communication network system, various embodiments of the present application are proposed.

[0062] The first embodiment

[0063] In view of the above technical problems, the present application provides a 5G radio frequency circuit. Figure 3 Schematic diagram of the connection of the 5G radio frequency circuit according to an embodiment of the present application Figure 1 .

[0064] As Figure 3 shown, in one embodiment, the 5G radio frequency circuit includes a radio frequency power supply 10, a first main antenna 21, a second main antenna 22, a first power amplifier 31, a second power amplifier 32, and a radio frequency transceiver 40.

[0065] The first main antenna 21 is connected to the output end of the first power amplifier 31, the input end of the first power amplifier 31 is connected to the radio frequency transceiver 40, and the power supply end of the first power amplifier 31 is directly connected to the radio frequency power supply 10;

[0066] The second main antenna 22 is connected to the output end of the second power amplifier 32, the input end of the second power amplifier 32 is connected to the radio frequency transceiver 40; the power supply end of the second power amplifier 32 is directly connected to the radio frequency power supply 10.

[0067] The basic architecture of the radio frequency system includes three parts: a radio frequency transceiver, a radio frequency front end, and an antenna. The radio frequency front end further includes multiple components such as a power amplifier, an envelope tracker, a low-noise amplifier, a filter, an antenna switch, and an antenna tuner. These components cooperate with each other to jointly complete the tasks of transmitting and receiving wireless signals. Exemplarily, the radio frequency transceiver can provide all the signal interfaces required for radio frequency transmission and reception for the intelligent terminal. The radio frequency information received by the radio frequency transceiver through the antenna is sent to the external space through the antenna. Exemplarily, the LTE band signal can be transmitted and received through the first main antenna, or can be implemented in combination with a diversity antenna; the high, medium, and low frequency band signals of 5G can be transmitted and received through the second main antenna, or can be implemented in combination with a diversity antenna. By separately setting two main antennas and two corresponding radio frequency paths to be respectively connected to the radio frequency transceiver, it is possible to avoid interference between different system bands and achieve multiple ENDC combination methods in different communication modes, and effectively expand the adaptability of the radio frequency architecture.

[0068] Exemplarily, the power supply ends of the first power amplifier and the second power amplifier are directly connected to the radio frequency power supply, without the need for a dedicated power management chip, which can reduce the product cost and the occupied area.

[0069] Optionally, the first power amplifier 31 is a 5G LMHB power amplifier, and / or the second power amplifier 32 is a 5G UHB power amplifier.

[0070] LMHB is a technology in 5G radio frequency, representing "Low Medium High Band". This technology is mainly applied to the radio frequency front-end module (RF FEM). By integrating high-performance SAW filters, low-noise amplifiers (LNA), and Switch arrays, etc., it can effectively process and transmit high / middle / low-frequency signals. The radio frequency system of LMHB technology has higher integration and performance, and can also optimize products in terms of power consumption, size, and cost.

[0071] UHB (Ultra High Bandwidth) means ultra-high frequency bandwidth. In the context of 5G technology, UHB usually refers to the ultra-high frequency band defined by 5G, which poses higher challenges to the performance of the radio frequency front end. With the advent of the 5G era, mobile terminals need to support more frequency bands, especially the ultra-high frequency (UHB) band defined by 5G, which puts forward higher requirements for the performance of the radio frequency front end. After two years of scheme iteration, the 5G radio frequency front-end scheme has basically converged, mainly divided into Phase7 series scheme and Phase5N two schemes, and these two schemes are specifically optimized and defined for the Sub-6GHz UHB new frequency band part.

[0072] Please continue to refer to Figure 3 , optionally, in the circuit where the power supply terminal of the first power amplifier 31 is directly connected to the radio frequency power supply 10, no power management chip is set for SA or NSA network networking.

[0073] Please continue to refer to Figure 3 , optionally, in the circuit where the power supply terminal of the second power amplifier 32 is directly connected to the radio frequency power supply 10, no power management chip is set for SA or NSA network networking.

[0074] Exemplarily, SA (Standalone) and NSA (Non-Standalone) are two networking modes of 5G networks.

[0075] In the SA networking mode, the 5G base station is directly connected to the 5G core network and does not need to rely on 4G network facilities, and can support all functions and new services of 5G. This mode can provide lower latency, higher data rates, and can support advanced 5G technologies such as network slicing. Due to the need to build a large number of 5G base stations and core networks, the deployment cost is relatively high.

[0076] The NSA networking mode means that the 5G base station needs to rely on existing 4G infrastructure, including the 4G core network and 4G base stations. In NSA networking, 5G and 4G communicate at the access network level, and the interconnection is relatively complex. The initial deployment cost is relatively low because the existing 4G base stations can be reused. However, in terms of network performance, such as indicators like latency, bandwidth, network reliability, and service flexibility, it is not as good as the SA networking mode.

[0077] In this embodiment, by not setting a dedicated power management chip to provide power support, the product cost and the occupied area of the ornament are effectively reduced, which is beneficial to the miniaturized design of the main board and reduces the design difficulty of the product.

[0078] Please continue to refer to Figure 3 , optionally, the RF power supply 10 includes a first RF power supply 101 and a second RF power supply 102, and the power supply terminal of the first power amplifier 31 is directly connected to the first RF power supply 101; the power supply terminal of the second power amplifier 32 is directly connected to the second RF power supply 102.

[0079] An RF power supply is a power supply that can provide a working voltage for an RF power amplifier, which can have a specific frequency range and a certain power. The characteristics of the RF power supply include high efficiency in the high-frequency band, small volume, and excellent signal stability, etc., making it play an important role in these fields. Exemplarily, the first RF power supply and the second RF power supply can be the same power supply or two different independent power supplies.

[0080] Please continue to refer to Figure 3 , optionally, the 5G RF circuit further includes a first capacitor C1, the first end of the first capacitor C1 is connected to the power supply terminal of the first power amplifier 31, and the second end of the first capacitor C1 is grounded. Optionally, the 5G RF circuit further includes a second capacitor C2, the first end of the second capacitor C2 is connected to the power supply terminal of the second power amplifier 32, and the second end of the second capacitor C2 is grounded.

[0081] Capacitors buffer voltage changes through the characteristic of high impedance for DC and low impedance for AC, with large capacitors filtering low frequencies and small capacitors filtering high frequencies, so that the output voltage waveform is smoother. This function of the capacitor helps to reduce the ripple noise interference at the power supply input terminal and improve the stability of the power supply. Capacitors can also provide energy for local devices, can be charged and discharge to the devices, making the power supply input of the power amplifier uniform and reducing the load demand. The bypass capacitor should be as close as possible to the power supply pin and the ground pin of the load device to prevent the ground potential from rising and noise caused by excessive input values. Capacitors collect charges through rectification and transfer the stored energy to the power supply terminal of the power amplifier through the converter leads, which helps to smooth the current and voltage fluctuations at the power supply terminal of the power amplifier. In this application, the capacitance and type of the first capacitor and the second capacitor are not limited, and appropriate capacitors can be selected according to the product requirements.

[0082] Figure 4 Schematic diagram of the connection of the 5G RF circuit according to an embodiment of the present application Figure 2 .

[0083] Optionally, the 5G radio frequency circuit further includes a first duplexer 51. The first end of the first duplexer 51 is connected to the first main set antenna 21. The second end of the first duplexer 51 is connected to the output end of the first power amplifier 31. The third end of the first duplexer 51 is connected to the radio frequency transceiver 40. Optionally, the 5G radio frequency circuit further includes a second duplexer 52. The first end of the second duplexer 52 is connected to the second main set antenna 22. The second end of the second duplexer 52 is connected to the output end of the second power amplifier 32. The third end of the second duplexer 52 is connected to the radio frequency transceiver.

[0084] A duplexer is a main accessory of a heterodyne duplex radio and a repeater. Its function is to isolate the transmitted and received signals to ensure that both reception and transmission can work properly simultaneously. It consists of two groups of band-pass filters with different frequencies to prevent the transmitted signal of the local machine from being transmitted to the receiver. Exemplarily, the duplexer can be connected between the main set antenna and the power amplifier, enabling the radio frequency transceiver to receive and transmit signals through the main set antenna, where the transmitted signal can be amplified by the power amplifier.

[0085] Optionally, the 5G radio frequency circuit further includes a double-pole double-throw switch 60 and a first diversity antenna 71. The first end of the double-pole double-throw switch 60 is connected to the first diversity antenna 71. The second end of the double-pole double-throw switch 60 is connected to the second main set antenna 22. The third end of the double-pole double-throw switch 60 is connected to the radio frequency transceiver 40. The fourth end of the double-pole double-throw switch 60 is connected to the second duplexer 52.

[0086] A single-pole multi-throw switch consists of a moving end and stationary ends. The moving end is the so-called "knife", which can connect the incoming line. The other multi-throw ends are the output ends, that is, the so-called stationary ends, which are connected to other devices. The function of a single-pole multi-throw switch can control the power supply to output in multiple different directions. A double-pole double-throw switch is formed by juxtaposing two single-pole double-throw switches. Each side of the double-pole double-throw switch is equivalent to a single-pole double-throw switch.

[0087] Please continue to refer to Figure 4 , the fourth end of the double-pole double-throw switch 60 can be connected to the second duplexer 52 through the radio frequency transmission module 307.

[0088] A radio frequency transmission module is a wireless communication module, which is mainly responsible for converting the signal to be transmitted into a radio frequency signal and transmitting it. Exemplarily, some duplexers in the 5G mode can use the radio frequency transmission module to receive and transmit signals through the double-pole double-throw switch connected to the second main set antenna, where the transmitted 5G signal can be amplified by the corresponding 5G power amplifier. Some diversity reception switches in the LTE mode can receive and transmit signals through the double-pole double-throw switch connected to the first diversity antenna.

[0089] Optionally, the 5G radio frequency circuit further includes a first receiving module 81. The first end of the first receiving module 81 is connected to the third end of the double-pole double-throw switch 60 to receive the diversity reception signal. The second end of the first receiving module 81 is connected to the radio frequency transceiver 40 to process the diversity reception signal of the first frequency band. The third end of the first receiving module 81 is connected to the radio frequency transceiver 40 to process the diversity reception signal of the second frequency band.

[0090] Exemplarily, the first receiving module is configured to separately receive the medium-high frequency signal (first frequency band) and the low frequency signal (second frequency band). In another embodiment, the first receiving module may also receive the medium-high frequency signal and the low frequency signal without distinction.

[0091] Please continue to refer to Figure 4 Optionally, the 5G radio frequency circuit further includes a first filter 91 and a second filter 92. The first filter 91 is connected between the first duplexer 51 and the radio frequency transceiver 40 and is used to filter the main set reception signal of the third frequency band.

[0092] The second filter 92 is connected between the second duplexer 52 and the radio frequency transceiver 40 and is used to filter the main set reception signal of the fourth frequency band.

[0093] In the transceiver circuit of wireless communication, the radio frequency filter is an important component, mainly to suppress the unwanted signals outside the filter passband and separate signals according to their frequencies. At the same time, the radio frequency filter can change the amplitude and phase of the sine wave passing through them, or more simply, the radio frequency filter can remove the unwanted frequency components from the signal and retain the desired frequency components at the same time. The wireless communication system is generally divided into multiple frequency bands, and different devices will operate in different frequency bands, so band-pass filters can be added to the receiving circuit of each frequency band to filter out out-of-band interference. Exemplarily, the first filter is connected between the duplexer of the third frequency band and the radio frequency transceiver and is used to filter the main set reception signal of the third frequency band. The second filter is connected between the duplexer of the fourth frequency band and the radio frequency transceiver and is used to filter the main set reception signal of the fourth frequency band.

[0094] Second Embodiment

[0095] The present application further provides an intelligent terminal, and the intelligent terminal includes the 5G radio frequency circuit as described in any one of the above.

[0096] Figure 5 It is a schematic diagram of the radio frequency circuit of the intelligent terminal according to an embodiment of the present application.

[0097] As Figure 5As shown, exemplarily, when the terminal is in a SA (Standalone) or NSA (Non-Standalone) network configuration, when the 5G frequency band TX passes through the LMHB PA power amplifier or the UHB PA power amplifier, the power supply battery of the PA is directly powered through the VBAT circuit (the power supply path in battery mode). A corresponding capacitor can be added to the power input terminal of the PA to reduce clutter and ripple.

[0098] In this embodiment, the 5G radio frequency circuit in the intelligent terminal does not use a power management integrated circuit (PMIC), and is set to be directly powered through the VBAT circuit, effectively reducing the product cost and the occupied area, which is beneficial to the miniaturized design of the main board.

[0099] The 5G radio frequency circuit and the intelligent terminal provided in this application connect the output end of the first power amplifier through the first main antenna, the input end of the first power amplifier is connected to the radio frequency transceiver, and the power supply end of the first power amplifier is directly connected to the radio frequency power supply; the second main antenna is connected to the output end of the second power amplifier, the input end of the second power amplifier is connected to the radio frequency transceiver; the power supply end of the second power amplifier is directly connected to the radio frequency power supply; the first power amplifier is a 5G LMHB power amplifier, and / or, the second power amplifier is a 5G UHB power amplifier; there is no need for a dedicated power management integrated circuit to provide power support, effectively reducing the product cost and the occupied area, which is beneficial to the miniaturized design of the main board, reducing the design difficulty of the product and improving the user experience.

[0100] It can be understood that the above scenarios are only examples and do not constitute a limitation on the application scenarios of the technical solutions provided in the embodiments of this application. The technical solutions of this application can also be applied to other scenarios. For example, as is known to those of ordinary skill in the art, with the evolution of the system architecture and the emergence of new service scenarios, the technical solutions provided in the embodiments of this application are equally applicable to similar technical problems.

[0101] The serial numbers of the above embodiments of this application are only for description and do not represent the advantages or disadvantages of the embodiments.

[0102] The units in the devices of the embodiments of this application can be combined, divided, and deleted according to actual needs.

[0103] In this application, for the description of the same or similar term concepts, technical solutions, and / or application scenarios, generally only the first occurrence is described in detail. When it appears repeatedly later, for the sake of brevity, it is generally not repeated. When understanding the technical solutions and other contents of this application, for the same or similar term concepts, technical solutions, and / or application scenarios described later without detailed description, reference can be made to the relevant detailed descriptions before.

[0104] In this application, the descriptions of various embodiments have their own focuses. For parts not detailed or recorded in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0105] The technical features of the technical solutions of this application can be combined arbitrarily. For the sake of concise description, 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, it should be considered to be within the scope recorded in this application.

[0106] Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solutions of this application, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. This computer software product is stored in a storage medium as described above (such as ROM / RAM, magnetic disk, optical disc), and includes several instructions to enable a terminal device (which can be a mobile phone, computer, server, controlled terminal, or network device, etc.) to execute the methods of each embodiment of this application.

[0107] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof.

[0108] The above are only the preferred embodiments of this application, and do not limit the patent scope of this application accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of this application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of this application.

Claims

1. A 5G radio frequency circuit, characterized in that: It includes a radio frequency power supply, a first main antenna, a second main antenna, a first power amplifier, a second power amplifier and a radio frequency transceiver; The first main antenna is connected to the output end of the first power amplifier, the input end of the first power amplifier is connected to the radio frequency transceiver, and the power supply end of the first power amplifier is directly connected to the radio frequency power supply; The second main antenna is connected to the output end of the second power amplifier, and the input end of the second power amplifier is connected to the radio frequency transceiver; the power supply end of the second power amplifier is directly connected to the radio frequency power supply; The first power amplifier is a 5G LMHB power amplifier, and / or the second power amplifier is a 5G UHB power amplifier.

2. A 5G radio frequency circuit according to claim 1, characterized in that: In the circuit where the power supply end of the first power amplifier is directly connected to the radio frequency power supply, no power management chip is provided, so as to be used for SA or NSA network networking; and / or, In the circuit where the power supply end of the second power amplifier is directly connected to the RF power supply, no power management chip is provided for SA or NSA network networking.

3. A 5G radio frequency circuit according to claim 1, characterized in that: The RF power supply includes a first RF power supply and a second RF power supply. The power supply end of the first power amplifier is directly connected to the first RF power supply; and the power supply end of the second power amplifier is directly connected to the second RF power supply.

4. A 5G radio frequency circuit according to claim 1, characterized in that: The 5G radio frequency circuit further includes a first capacitor, a first end of the first capacitor is connected to a power supply end of the first power amplifier, and a second end of the first capacitor is grounded; and / or, The 5G radio frequency circuit also includes a second capacitor, a first end of the second capacitor is connected to the power supply end of the second power amplifier, and a second end of the second capacitor is grounded.

5. A 5G radio frequency circuit according to any one of claims 1 to 4, characterized in that: The 5G RF circuit also includes a first duplexer, a first end of the first duplexer is connected to the first main antenna, a second end of the first duplexer is connected to the output end of the first power amplifier, and a third end of the first duplexer is connected to the RF transceiver.

6. A 5G radio frequency circuit according to any one of claims 1 to 4, characterized in that: The 5G RF circuit also includes a second duplexer, a first end of the second duplexer is connected to the second main antenna, a second end of the second duplexer is connected to the output end of the second power amplifier, and a third end of the second duplexer is connected to the RF transceiver.

7. A 5G radio frequency circuit according to claim 6, characterized in that: The 5G RF circuit also includes a double-pole double-throw switch and a first diversity antenna, the first end of the double-pole double-throw switch is connected to the first diversity antenna, the second end of the double-pole double-throw switch is connected to the second main diversity antenna, the third end of the double-pole double-throw switch is connected to the RF transceiver, and the fourth end of the double-pole double-throw switch is connected to the second duplexer.

8. A 5G radio frequency circuit according to claim 7, characterized in that: The 5G radio frequency circuit further includes a first receiving module, wherein a first end of the first receiving module is connected to a third end of the double-pole double-throw switch to receive a diversity receiving signal; a second end of the first receiving module is connected to the radio frequency transceiver to process a diversity receiving signal of a first frequency band; The third end of the first receiving module is connected to the radio frequency transceiver to process the diversity receiving signal of the second frequency band.

9. A 5G radio frequency circuit according to claim 6, characterized in that: The 5G radio frequency circuit also includes a first filter and a second filter, The first filter is connected between the first duplexer and the radio frequency transceiver, and is used to filter the main set of received signals in the third frequency band; The second filter is connected between the second duplexer and the radio frequency transceiver, and is used for filtering the main set of received signals in the fourth frequency band.

10. An intelligent terminal, characterized in that: Comprising a 5G radio frequency circuit as described in any one of claims 1 to 9.

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