Radio frequency system and intelligent terminal

Abstract

The invention provides a radio frequency system and an intelligent terminal, the radio frequency system comprises a first diversity unit, a second diversity unit and a radio frequency transceiver, and the first diversity unit and the second diversity unit are respectively connected with the radio frequency transceiver. The first diversity unit is used for controlling a first target medium-frequency band signal of a preset medium-frequency band of the main carrier or a first target high-frequency band signal of a preset high-frequency band of the main carrier to be sent to the radio frequency transceiver; and the second diversity unit is used for controlling a second target middle frequency band signal of the subcarrier preset middle frequency band or a second target high frequency band signal of the subcarrier preset high frequency band to be sent to the radio frequency transceiver. For medium and high frequency band signals, the diversity radio frequency channels of the main carrier and the subcarrier are divided into the first diversity unit and the second diversity unit, so that carrier aggregation of intermediate frequency + intermediate frequency or intermediate frequency + high frequency can be satisfied without arranging a dual-band surface acoustic wave filter or a three-band surface acoustic wave filter in the diversity radio frequency channels; the device loss is reduced, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a radio frequency system and an intelligent terminal. Background Art

[0002] Radio frequency systems play an important role in communications. They are able to operate in different frequency ranges, thereby utilizing different parts of the radio spectrum to meet the communication needs of users.

[0003] In the process of conceiving and implementing this application, the inventors found that there are at least the following problems: In some schemes, for mid- and high-band signals, the current RF system sets a common diversity RF channel for the main carrier and the subcarrier. In order to make the diversity RF channel meet the carrier aggregation of the intermediate frequency signal + intermediate frequency signal or the carrier aggregation of the intermediate frequency signal + high-frequency signal at the same time, it is necessary to set a dual-band surface acoustic wave filter or a triple-band surface acoustic wave filter in the diversity RF channel. The dual-band surface acoustic wave filter or the triple-band surface acoustic wave filter is prone to loss, which affects the user experience.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Summary of the invention

[0005] In response to the above technical problems, the present application provides a radio frequency system and a smart terminal. When transmitting medium and high frequency band signals, the radio frequency system does not need to use a dual-band surface acoustic wave filter or a triple-band surface acoustic wave filter, thereby reducing device losses and improving user experience.

[0006] To solve the above technical problems, the present application provides a radio frequency system, including: a first diversity unit, a second diversity unit and a radio frequency transceiver, the first diversity unit being used to transmit a low frequency band signal, a mid frequency band signal and a high frequency band signal of a main carrier, and the second diversity unit being used to transmit a mid frequency band signal and a high frequency band signal of a subcarrier.

[0007] The first diversity unit and the second diversity unit are connected to the radio frequency transceiver respectively.

[0008] The first diversity unit is used to control a first target middle frequency band signal of a preset middle frequency band of a main carrier or a first target high frequency band signal of a preset high frequency band of a main carrier to be sent to the radio frequency transceiver.

[0009] The second diversity unit is used to control a second target mid-frequency band signal of a preset mid-frequency band of a subcarrier or a second target high-frequency band signal of a preset high-frequency band of a subcarrier to be sent to the radio frequency transceiver.

[0010] Optionally, the first diversity unit is further used to control a first target low frequency band signal of a preset low frequency band of a main carrier or a second target low frequency band signal of a preset low frequency band of a secondary carrier to be sent to the radio frequency transceiver.

[0011] Optionally, the first diversity unit includes a first diversity antenna, a signal separation unit and a first single-band surface acoustic wave filter.

[0012] Optionally, the first diversity antenna is connected to the input end of the signal separation unit, the output end of the signal separation unit is connected to the input end of the first single-band surface acoustic wave filter, and the output end of the first single-band surface acoustic wave filter is connected to the RF transceiver.

[0013] Optionally, the first diversity antenna is used to send a mixed signal, the mixed signal including a low-frequency band signal, a mid-frequency band signal and a high-frequency band signal of the main carrier; the signal separation unit is used to separate a mid-frequency band and a high-frequency band mixed signal from the mixed signal, the mid-frequency band and the high-frequency band mixed signal being a mid-frequency band and the high-frequency band mixed signal of the main carrier.

[0014] Optionally, the first single-band surface acoustic wave filter is used to control the first target mid-frequency band signal that conforms to the preset mid-frequency band of the main carrier in the mid- and high-band mixed signal, or the first target high-frequency band signal that conforms to the preset high-frequency band of the main carrier to be sent to the RF transceiver.

[0015] Optionally, the signal separation unit includes a first combiner and a first single-pole multi-throw switch.

[0016] Optionally, the first combiner input is connected to the first diversity antenna, the first combiner output is connected to the first single-pole multi-throw switch input, and the first single-pole multi-throw switch output is connected to the first single-band surface acoustic wave filter.

[0017] Optionally, the first combiner is used to separate the low-frequency band signal and the mid- and high-frequency band mixed signal from the mixed signal sent by the first diversity antenna.

[0018] Optionally, the first single-pole multi-throw switch is used to control the first target mid-frequency band signal in the mid-high frequency band mixed signal that conforms to the preset mid-frequency band of the main carrier, or the first target high frequency band signal that conforms to the preset high frequency band of the main carrier is sent to the first single-band surface acoustic wave filter.

[0019] Optionally, the first diversity unit is further used to control a first target low frequency band signal of a preset low frequency band of a main carrier or a second target low frequency band signal of a preset low frequency band of a secondary carrier to be sent to the radio frequency transceiver.

[0020] Optionally, the mixed signal sent by the first diversity antenna also includes a low-frequency band signal of a subcarrier; the first diversity unit also includes a second single-pole multi-throw switch and a first dual-band surface acoustic wave filter.

[0021] Optionally, the second single-pole multi-throw switch input end is connected to the first combiner output end, the second single-pole multi-throw switch output end is connected to the first dual-band surface acoustic wave filter input end, and the first dual-band surface acoustic wave filter output end is connected to the RF transceiver.

[0022] Optionally, the first combiner is further used to separate a low-frequency band signal from the mixed signal, where the low-frequency band signal includes a low-frequency band signal of a main carrier and a low-frequency band signal of a subcarrier.

[0023] Optionally, the second single-pole multi-throw switch is used to control a first target low-frequency band signal in the low-frequency band signal that complies with the preset low-frequency band of the main carrier, or a second target low-frequency band signal that complies with the preset low-frequency band of the subcarrier to be sent to the first dual-band surface acoustic wave filter.

[0024] Optionally, the second diversity unit includes a second diversity antenna, a third single-pole multi-throw switch and a second single-band surface acoustic wave filter.

[0025] Optionally, the second diversity antenna is connected to the input end of the third single-pole multi-throw switch, the output end of the third single-pole multi-throw switch is connected to the input end of the second single-band surface acoustic wave filter, and the output end of the second single-band surface acoustic wave filter is connected to the RF transceiver.

[0026] Optionally, the second diversity antenna is used to send a mixed signal of mid- and high-band subcarriers.

[0027] Optionally, the third single-pole multi-throw switch is used to control the second target mid-frequency band signal that conforms to the preset mid-frequency band of the subcarrier in the mid-high band mixed signal of the subcarrier, or the second target high band signal that conforms to the preset high band of the subcarrier is sent to the second single-band surface acoustic wave filter, so that the second target mid-frequency band signal or the second target high band signal is sent to the RF transceiver through the second single-band surface acoustic wave filter.

[0028] Optionally, the radio frequency system further includes a subcarrier main set unit; the subcarrier main set unit is connected to the radio frequency transceiver.

[0029] Optionally, the subcarrier main set unit is used to control the third target low frequency band signal of the subcarrier preset low frequency band, or the third target mid frequency band signal of the subcarrier preset mid frequency band, or the third target high frequency band signal of the subcarrier preset high frequency band to be sent to the RF transceiver.

[0030] Optionally, the subcarrier main set unit includes a main set antenna, a second combiner, a fourth single-pole multi-throw switch and a third single-band surface acoustic wave filter.

[0031] Optionally, the main antenna is connected to the input end of the second combiner, the output end of the second combiner is connected to the input end of the fourth single-pole multi-throw switch, the output end of the fourth single-pole multi-throw switch is connected to the input end of the third single-band surface acoustic wave filter, and the output end of the third single-band surface acoustic wave filter is connected to the RF transceiver.

[0032] Optionally, the main antenna is used to send a mixed signal of low, medium and high frequency bands of the subcarrier.

[0033] Optionally, the second combiner is used to separate the mid- and high-band mixed signal of the subcarrier into a low-band signal of the subcarrier and a mid- and high-band mixed signal.

[0034] Optionally, the fourth single-pole multi-throw switch is used to control the third target mid-frequency band signal in the mid-high frequency band mixed signal that conforms to the preset mid-frequency band of the subcarrier, or the third target high-frequency band signal that conforms to the preset high frequency band of the subcarrier is sent to the third single-band surface acoustic wave filter, so that the third target mid-frequency band signal or the third target high-frequency band signal is sent to the RF transceiver through the third single-band surface acoustic wave filter.

[0035] Optionally, the subcarrier main set unit further includes a fifth single-pole multi-throw switch and a second dual-band surface acoustic wave filter.

[0036] Optionally, the fifth single-pole multi-throw switch input terminal is connected to the second combiner output terminal, the fifth single-pole multi-throw switch output terminal is connected to the second dual-band surface acoustic wave filter input terminal, and the second dual-band surface acoustic wave filter output terminal is connected to the radio frequency transceiver. And / or,

[0037] Optionally, the fifth single-pole multi-throw switch is used to control a third target low-frequency band signal in the low-frequency band signal that complies with a preset low-frequency band of the subcarrier to be sent to the second dual-band surface acoustic wave filter.

[0038] The present application also provides an intelligent terminal, comprising a main body and any of the above-mentioned radio frequency systems.

[0039] As described above, the radio frequency system of the present application includes a first diversity unit, a second diversity unit, and a radio frequency transceiver, the first diversity unit can transmit the low frequency band signal, the mid-frequency band signal, and the high frequency band signal of the main carrier, and the second diversity unit can transmit the mid-frequency band signal and the high frequency band signal of the subcarrier. The first diversity unit and the second diversity unit are respectively connected to the radio frequency transceiver, the first diversity unit is used to control the first target mid-frequency band signal of the preset mid-frequency band of the main carrier or the first target high frequency band signal of the preset high frequency band of the main carrier to be sent to the radio frequency transceiver, and the second diversity unit is used to control the second target mid-frequency band signal of the preset mid-frequency band of the subcarrier or the second target high frequency band signal of the preset high frequency band of the subcarrier to be sent to the radio frequency transceiver. Through the above scheme, for medium and high frequency band signals, the RF system separates the diversity RF channels of the main carrier and the subcarrier into a first diversity unit and a second diversity unit. There is no need to set a dual-band surface acoustic wave filter or a triple-band surface acoustic wave filter in the diversity RF channel. It can meet the carrier aggregation of intermediate frequency signal + intermediate frequency signal or the carrier aggregation of intermediate frequency signal + high frequency signal, reduce the device loss in the signal transmission process, and improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. In order 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 are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0041] Figure 1 A schematic diagram of the hardware structure of a mobile terminal provided in each embodiment of the present application;

[0042] Figure 2 A communication network system architecture diagram provided for an embodiment of the present application;

[0043] Figure 3A A schematic diagram of the structure of an exemplary embodiment provided for this application;

[0044] Figure 3B A schematic diagram of the structure of a dual-band surface acoustic wave filter provided in this application;

[0045] Figure 3C A schematic diagram of the structure of a three-band surface acoustic wave filter provided in this application;

[0046] Figure 3D A structural schematic diagram of another exemplary prior art provided for this application;

[0047] Figure 4A schematic diagram of the structure of a radio frequency system provided in an embodiment of the present application;

[0048] Figure 5 A schematic diagram of the structure of a first diversity unit provided in an embodiment of the present application;

[0049] Figure 6 A schematic diagram of the structure of another first diversity unit provided in an embodiment of the present application;

[0050] Figure 7 A schematic diagram of the structure of a second diversity unit provided in an embodiment of the present application;

[0051] Figure 8 A schematic diagram of another radio frequency system structure provided in an embodiment of the present application;

[0052] Fig. 9 A schematic diagram of the structure of a subcarrier main set unit provided in an embodiment of the present application;

[0053] Fig.10 A schematic diagram of the structure of another subcarrier main set unit provided in an embodiment of the present application;

[0054] Fig.11 A schematic diagram of the structure of a radio frequency system provided in an embodiment of the present application.

[0055] The realization of the purpose, functional features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. The above-mentioned drawings have shown clear embodiments of this application, which will be described in more detail later. These drawings and textual descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0056] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0057] It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element. Optionally, 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 by their explanation in the specific embodiment or further combined with the context in the specific embodiment.

[0058] It should be understood that, although the terms first, second, third, etc. may be used to describe various information in this article, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this article, 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 can be interpreted as "at the time of" or "when" or "in response to determination". Furthermore, as used in this article, the singular forms "one", "one" and "the" are intended to also include plural forms, unless there is an opposite indication in the context. It should be further understood that the terms "comprising", "including" indicate the existence of features, steps, operations, elements, components, projects, kinds, and / or groups, but do not exclude the existence, occurrence or addition of one or more other features, steps, operations, elements, components, projects, kinds, and / or groups. The terms "or", "and / or", "including at least one of the following" etc. used in this application can be interpreted as inclusive, or mean any one or any combination. For example, “comprising at least one of the following: A, B, C” means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C”, and for another example, “A, B or C” or “A, B and / or C” means “any 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 will only occur when a combination of elements, functions, steps or operations are inherently mutually exclusive in some manner.

[0059] It should be understood that, although the various steps in the flowchart in the embodiment of the present application are displayed in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and it can be performed in other orders. Moreover, at least a portion of the steps in the figure may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and their execution order is not necessarily performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0060] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0061] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0062] In the subsequent description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present application, and have no specific meanings. Therefore, "module", "component" or "unit" can be used in a mixed manner.

[0063] The smart terminal may be implemented in various forms. For example, the smart terminal described in this application may include mobile terminals such as mobile phones, tablet computers, laptop computers, PDAs, portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminals such as digital TVs and desktop computers.

[0064] The following description will be made by taking a mobile terminal as an example, and those skilled in the art will understand that, in addition to components specifically used for mobile purposes, the construction according to the embodiments of the present application can also be applied to fixed-type terminals.

[0065] See also Figure 1 , Figure 1A schematic diagram of the hardware structure of a mobile terminal provided in each embodiment of the present application, the mobile terminal 100 may include: a radio frequency (RF) 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. Those skilled in the art can understand that Figure 1 The structure of the mobile terminal shown in the figure 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 arrange the components differently.

[0066] Combine the following Figure 1 The following is a detailed introduction to the various components of the mobile terminal:

[0067] The radio frequency unit 101 can be used for receiving and sending signals during information transmission or communication. 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. Generally, the radio frequency unit 101 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc. In addition, the radio frequency unit 101 can also communicate with the network and other devices through wireless communication. The above-mentioned wireless communications can use any communication standard or protocol, including but not limited to Global System of Mobilecommunication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access 2000 (CDMA2000), Wideband Code Division Multiple Access (WCDMA), Time Division-Synchronous Code Division Multiple Access (TD-SCDMA), Frequency Division Duplexing-Long Term Evolution (FDD-LTE), Time Division Duplexing-Long Term Evolution (TDD-LTE), 5G and 6G, etc.

[0068] WiFi is a short-range wireless transmission technology. Mobile terminals can help users send and receive emails, browse web pages, and access streaming media through WiFi module 102. It provides users with wireless broadband Internet access. Figure 1 The WiFi module 102 is shown, but it is understandable that it is not an essential component of the mobile terminal and can be omitted as needed without changing the essence of the invention.

[0069] The audio output unit 103 can convert the audio data received by the RF 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 talk mode, a recording mode, a voice recognition mode, a broadcast reception mode, etc. Moreover, the audio output unit 103 can also provide audio output related to a specific function performed by the mobile terminal 100 (for example, a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, etc.

[0070] The A / V input unit 104 is used to receive audio or video signals. The A / V input unit 104 may include a graphics processor (GPU) 1041 and a microphone 1042, and the graphics processor 1041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The processed image frame can be displayed on the display unit 106. The image frame processed by the graphics processor 1041 can be stored in the memory 109 (or other storage medium) or sent via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sound (audio data) via the microphone 1042 in a telephone call mode, a recording mode, a voice recognition mode, and other operating modes, and can process such sound into audio data. The processed audio (voice) data can be converted into a format output that can be sent to a mobile communication base station via the radio frequency unit 101 in the case of a telephone call mode. The microphone 1042 can implement various types of noise elimination (or suppression) algorithms to eliminate (or suppress) noise or interference generated in the process of receiving and sending audio signals.

[0071] The mobile terminal 100 also 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 type 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. It 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 pedometer, tapping), etc.; as for other sensors that can be configured on the mobile phone, such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., they will not be repeated here.

[0072] The display unit 106 is used to display information input by the user or information provided to the user. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0073] The user input unit 107 can be used to receive input digital or character information, and to generate key signal input related to the user settings and function control of the mobile terminal. Optionally, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also known as a touch screen, can collect the user's touch operation on or near it (such as the user's operation on the touch panel 1071 or near the touch panel 1071 using any suitable object or accessory such as a finger, stylus, etc.), and drive the corresponding connection device according to a pre-set program. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Optionally, the touch detection device detects the user's touch orientation, 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 the touch point coordinates, and then sends it to the processor 110, and can receive and execute the command sent by the processor 110. In addition, the touch panel 1071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may further include other input devices 1072. Optionally, the other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, a function key (such as a volume control key, a switch key, etc.), a trackball, a mouse, a joystick, etc., which are not specifically limited here.

[0074] Optionally, the touch panel 1071 may cover the display panel 1061. When the touch panel 1071 detects a touch operation on or near it, it transmits the information to the processor 110 to determine the type of touch event. Then, the processor 110 provides corresponding visual output on the display panel 1061 according to the type of touch event. Figure 1 In the figure, the touch panel 1071 and the display panel 1061 are used as two independent components to implement the input and output functions of the mobile terminal. However, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated to implement the input and output functions of the mobile terminal, which is not limited here.

[0075] 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 may 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 headphone port, etc. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and an external device.

[0076] The memory 109 can be used to store software programs and various data. The memory 109 can mainly include a program storage area and a data storage area. Optionally, the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory 109 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0077] The processor 110 is the control center of the mobile terminal. It uses various interfaces and lines to connect various parts of the entire mobile terminal. It executes various functions of the mobile terminal and processes data by running or executing software programs and / or modules stored in the memory 109, and calling data stored in the memory 109, so as to monitor the mobile terminal as a whole. The processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor. Optionally, the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 110.

[0078] The mobile terminal 100 may also include a power supply 111 (such as a battery) for supplying power to various components. Preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system.

[0079] although Figure 1 Not shown, the mobile terminal 100 may further include a Bluetooth module, etc., which will not be described in detail here.

[0080] In order 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 is described below.

[0081] See also Figure 2 , Figure 2 A communication network system architecture diagram is provided for an embodiment of the present application, wherein the communication network system is an LTE system of universal mobile communication technology, and the LTE system includes a user equipment (UE) 201, an evolved UMTS terrestrial radio access network (Evolved UMTS Terrestrial Radio Access Network, E-UTRAN) 202, an evolved packet core network (Evolved Packet Core, EPC) 203 and an operator's IP service 204 that are connected in communication in sequence.

[0082] Optionally, UE201 may be the above-mentioned mobile terminal 100, which will not be described in detail here.

[0083] E-UTRAN 202 includes eNodeB 2021 and other eNodeBs 2022 , etc. Optionally, eNodeB 2021 may be connected to other eNodeBs 2022 via a backhaul (eg, an X2 interface), and eNodeB 2021 is connected to EPC 203 , and eNodeB 2021 may provide UE 201 with access to EPC 203 .

[0084] EPC203 may include Mobility Management Entity (MME) 2031, Home Subscriber Server (HSS) 2032, other MMEs 2033, Serving GateWay (SGW) 2034, Packet Data Network Gateway (PDN Gate Way, PGW) 2035 and Policy and Charging Rules Function (PCRF) 2036, etc. Optionally, MME2031 is a control node that processes signaling between UE201 and EPC203, and provides bearer and connection management. HSS2032 is used to provide some registers to manage functions such as home location register (not shown in the figure), and save some user-specific information such as service features and data rates. All user data can be sent through SGW2034, PGW2035 can provide IP address allocation and other functions for UE 201, PCRF2036 is the policy and charging control policy decision point for service data flow and IP bearer resources, which selects and provides available policy and charging control decisions for the policy and charging execution function unit (not shown in the figure).

[0085] The IP service 204 may include the Internet, an intranet, an IMS (IP Multimedia Subsystem) or other IP services.

[0086] Although the above introduction takes the LTE system as an example, those skilled in the art should know that the present application is not only applicable to the LTE system, but also to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, 5G and future new network systems (such as 6G), etc., without limitation here.

[0087] Based on the above-mentioned mobile terminal hardware structure and communication network system, various embodiments of the present application are proposed.

[0088] In order to facilitate the understanding of the present application, some schemes involved in the present application are firstly illustrated by way of example.

[0089] See also Figure 3A , Figure 3AA schematic diagram of the structure of an exemplary embodiment provided for the present application, in the existing radio frequency system, antenna ANTO is a low-frequency main antenna 01, antenna ANT1 is a medium-high frequency main antenna 02, and ANTO and ANT1 can transmit primary carrier component (PCC) signals. ANTO and ANT1 are respectively connected to the corresponding single-pole multi-throw switch 03SPXT input terminal, the single-pole multi-throw switch 03 output terminal is connected to the duplexer 04 input terminal, and the duplexer 04 output terminal is connected to the radio frequency transceiver 05. After the signals sent by ANTO and ANT1 are separated into low-frequency signals and medium-high frequency signals by the single-pole multi-throw switch 03, they are sent to the radio frequency transceiver 05 through the duplexer 04, so that the radio frequency transceiver 05 receives low-frequency signals (Low Band, LB) and medium-high frequency signals (Middle and High Band, MHB).

[0090] The duplexer 04 can also be connected to one end of the power amplifier 06, and the other end of the power amplifier 06 is connected to the RF transceiver 05, for amplifying the transmission signal sent by the RF transceiver 05 and sending the amplified transmission signal to the duplexer 04. The transmission signal is transmitted to the single-pole multi-throw switch 03 through the duplexer 04 and then reaches the antenna.

[0091] Antenna ANT2 in the RF system is a low-frequency diversity antenna 07, which can transmit the main carrier PCC signal. ANT2 is connected to the input end of the single-pole multi-throw switch 03, and the output end of the single-pole multi-throw switch 03 is connected to the input end of the single-band surface acoustic wave filter (SurfaceAcoustic Wave, SAW) 08, and the single-band saw08 is connected to the RF transceiver 05, so that the RF transceiver 05 receives the low-frequency signal.

[0092] Antenna ANT4 in the RF system is the medium and high frequency main antenna 021, which can transmit the main carrier SCC signal. ANT4 is connected to the input end of the single-pole multi-throw switch 03, the output end of the single-pole multi-throw switch 03 is connected to the input end of the single-band SAW08, and the output end of the single-band saw08 is connected to the RF transceiver 05, so that the RF transceiver 05 receives the medium and high frequency signals.

[0093] Antenna ANT3 is a medium-high frequency diversity antenna 08, which can transmit PCC signals and subcarrier (SCC) signals. Antenna ANT3 is connected to the input end of the single-pole multi-throw switch 03, and the output end of the single-pole multi-throw switch 03 is respectively connected to the input end of the intermediate frequency (Middle Band, MB) dual-band surface acoustic wave filter 09MB Dual SAW, the input end of the medium-high frequency three-band surface acoustic wave filter 010MHB Tri-SAW and the input end of the single-band surface acoustic wave filter 08. The output ends of MBDual SAW09, MHB Tri-SAW010 and the single-band SAW08 are respectively connected to the RF transceiver 05, so that the RF transceiver 05 receives low-frequency signals and medium-high frequency signals.

[0094] from Figure 3A It can be seen from ANT3 that a common diversity RF channel is set for the main carrier IF signal and the subcarrier IF signal. In order to enable the diversity RF channel to simultaneously satisfy the carrier aggregation of IF signal + IF signal or the carrier aggregation of IF signal + HF signal, a dual-band SAW filter or a triple-band SAW filter needs to be set in the diversity RF channel.

[0095] Optionally, assuming that the RF system wants to realize carrier aggregation transmission of intermediate frequency signal B1 + intermediate frequency signal B3, it is necessary to set a dual-band surface acoustic wave filter or a triple-band surface acoustic wave filter on the transmission link of ANT3. Taking the dual-band surface acoustic wave filter as an example, because the dual-band surface acoustic wave filter can control two signals to pass through at the same time, the above-mentioned transmission link enables the main carrier of B1 to reach the RF transceiver through antenna ANT1, the subcarrier of B1 to reach the RF transceiver through antenna ANT3, the main carrier of B3 to reach the RF transceiver through antenna ANT3, and the subcarrier of B3 to reach the RF transceiver through antenna ant4.

[0096] If the above-mentioned dual-band surface acoustic wave filter is changed to a single-band surface acoustic wave filter, the single-band surface acoustic wave filter only allows one signal to pass through. Assuming that only the subcarrier of B1 is allowed to pass through, the main carrier of B1 reaches the RF transceiver through antenna ant1, and the subcarrier of B1 can still reach the RF transceiver through antenna ant3, and the subcarrier of B3 can reach the RF transceiver through antenna ANT4. However, since the single-band surface acoustic wave filter only allows the subcarrier of B1 to pass through, the main carrier of B3 cannot reach the RF transceiver through antenna ANT3. Therefore, the RF system cannot realize carrier aggregation transmission of intermediate frequency signal B1 + intermediate frequency signal B3.

[0097] Optionally, the dual-band surface acoustic wave filter 09 has a structure as follows: Figure 3B As shown, Figure 3BA schematic structural diagram of a dual-band surface acoustic wave filter provided in the present application includes a common port 091 for receiving medium and high frequency signals, and also includes two output ports 092 and 093 for separating signals of different frequency bands, such as medium frequency signals B1 and B3, such as high frequency signal B7 and medium frequency signal B2.

[0098] Optionally, the structure of the three-band surface acoustic wave filter 010 is as follows: Figure 3C As shown, Figure 3C A schematic diagram of the structure of a three-band surface acoustic wave filter provided in the present application includes a common port 011 for receiving medium and high frequency signals, and also includes three output ports 012, 013 and 014 for separating signals of different frequency bands, optionally, medium frequency signals B1, B3 and high frequency signals B7 or B40.

[0099] See also Figure 3D , Figure 3D A schematic diagram of another exemplary prior art structure provided in this application, which is similar to Figure 3A They are basically similar, except that the single-pole multi-throw switch 03 connected to the antenna ANT0 and ANT1 is changed into a double-pole multi-throw switch DPXT / dual-port RF module TXM012, and their basic functions are the same, which is used to control the passage of signals in the preset frequency band. The rest of the structure is the same, and to avoid redundancy, it will not be repeated.

[0100] It is understandable that the present application does not limit the types and quantities of components such as single-pole multi-throw switches, duplexers, and surface acoustic wave filters.

[0101] However, in the above-mentioned RF system, a dual-band SAW filter or a triple-band SAW filter is required to realize carrier aggregation transmission of intermediate frequency signal + intermediate frequency signal or carrier aggregation transmission of intermediate frequency signal + high frequency signal. However, the dual-band SAW filter or the triple-band SAW filter is prone to loss during use, resulting in poor signal transmission performance, and the device cost is high, affecting the user experience.

[0102] In order to solve the above problems, this application proposes a radio frequency system, see Figure 4 , Figure 4 A structural schematic diagram of a radio frequency system provided in an embodiment of the present application, the radio frequency system includes: a first diversity unit 10, a second diversity unit 20 and a radio frequency transceiver 30.

[0103] Optionally, the first diversity unit 10 may transmit the low frequency band signal LB, the middle frequency band signal MB and the high frequency band signal HB of the main carrier PCC, and the second diversity unit 20 may transmit the middle frequency band signal MB and the high frequency band signal HB of the subcarrier SCC.

[0104] Optionally, the connection relationship is: the first diversity unit 10 and the second diversity unit 20 are connected to the radio frequency transceiver 30 respectively.

[0105] For the mid-high frequency band signal, the first diversity unit 10 is used to control the first target mid-frequency band signal of the preset mid-frequency band of the main carrier or the first target high-frequency band signal of the preset high-frequency band of the main carrier to be sent to the RF transceiver 30 .

[0106] For the mid-high frequency band signal, the second diversity unit 20 is used to control the second target mid-frequency band signal of the subcarrier preset mid-frequency band or the second target high-frequency band signal of the subcarrier preset high frequency band to be sent to the RF transceiver 30 .

[0107] In the above-mentioned embodiment of the present application, the RF system includes a first diversity unit, a second diversity unit and a RF transceiver. This embodiment can satisfy the carrier aggregation of intermediate frequency signal + intermediate frequency signal or the carrier aggregation of intermediate frequency signal + high frequency signal by separating the diversity RF channels of the main carrier and the subcarrier corresponding to the medium and high frequency bands, that is, dividing them into a first diversity unit and a second diversity unit. There is no need to set a dual-band surface acoustic wave filter or a triple-band surface acoustic wave filter in the diversity RF channel, which reduces the device loss in the signal transmission process and improves the user experience.

[0108] Based on the above embodiments, the structural composition of the first diversity unit is described in detail through the following embodiments.

[0109] See also Figure 5 , Figure 5 This is a schematic structural diagram of a first diversity unit provided in an embodiment of the present application. The first diversity unit 10 includes: a first diversity antenna 101 , a signal separation unit 102 and a first single-band surface acoustic wave filter 103 .

[0110] Optionally, the first diversity antenna 101 may transmit a low-band signal, a mid-band signal and a high-band signal of a main carrier, namely, LMHB (PCC).

[0111] Optionally, the connection relationship is: the first diversity antenna 101 is connected to the input end of the signal separation unit 102, the output end of the signal separation unit 102 is connected to the input end of the first single-band surface acoustic wave filter 103, and the output end of the first single-band surface acoustic wave filter 103 is connected to the RF transceiver 30.

[0112] Taking ANT2 as an example, the first diversity antenna 101 is used to send a mixed signal, which includes a low-frequency band signal, a mid-frequency band signal and a high-frequency band signal of a main carrier.

[0113] The signal separation unit 102 is used to separate a mid-high frequency band mixed signal MHB from the mixed signal, wherein the mid-high frequency band mixed signal is a mid-high frequency band mixed signal of a main carrier.

[0114] The first single-band SAW filter 103 is used to control the first target mid-frequency band signal that meets the preset mid-frequency band of the main carrier in the mid-high frequency band mixed signal, or the first target high frequency band signal that meets the preset high frequency band of the main carrier to be sent to the RF transceiver 30.

[0115] Optionally, assuming that the mixed signal includes a low-frequency band signal B5, a mid-frequency band signal B1 and a high-frequency band signal B7, the signal separation unit 102 separates the mid-frequency and high-frequency band mixed signals, namely B1 and B7, from the mixed signal. Assuming that the first single-band surface acoustic wave filter a controls the first target mid-frequency band signal B1 of the preset mid-frequency band of the main carrier to pass through, then B1 is sent to the RF transceiver 30. Assuming that the first single-band surface acoustic wave filter b controls the first target high-frequency band signal B7 of the preset high-frequency band of the main carrier to pass through, then B7 is sent to the RF transceiver 30.

[0116] Optionally, in this embodiment, the number of first single-band surface acoustic wave filters is not limited, and each first single-band surface acoustic wave filter can control the passage of a signal in a corresponding preset frequency band.

[0117] Optionally, the signal separation unit 102 may include a first combiner 1021 and a first single-pole multi-throw switch 1022 .

[0118] The input end of the first combiner 1021 is connected to the first diversity antenna 101 , the output end of the first combiner 1021 is connected to the input end of the first single-pole multi-throw switch 1022 , and the output end of the first single-band surface acoustic wave filter 103 .

[0119] The first combiner 1021 is used to separate the mixed signal of the middle and high frequency bands from the mixed signal sent by the first diversity antenna 101 .

[0120] The first single-pole multi-throw switch 1022 is used to control the first target mid-frequency band signal that meets the preset mid-frequency band of the main carrier in the mid-high frequency band mixed signal, or the first target high frequency band signal that meets the preset high frequency band of the main carrier to be sent to the first single-band SAW filter 30.

[0121] Optionally, assuming that the first combiner 1021 separates the mixed signals of the mid-high frequency band, namely B1 and B7, from the mixed signal, if the first single-pole multi-throw switch 1022 controls the first target mid-frequency band signal B1 in the mixed signal of the mid-high frequency band to pass through, the first single-band surface acoustic wave filter a connected thereto can receive B1, and then B1 is sent to the RF transceiver 30. If the first single-pole multi-throw switch 1022 controls the first target high-frequency band signal B7 in the preset high frequency band of the main carrier to pass through, the first single-band surface acoustic wave filter b connected thereto can receive B7, and then B7 is sent to the RF transceiver 30.

[0122] In this embodiment, the single-band surface acoustic wave filter has a smaller device loss than the dual-band surface acoustic wave filter or the triple-band surface acoustic wave filter. Taking the single-band surface acoustic wave filter and the triple-band surface acoustic wave filter as examples, the specific loss values ​​are shown in Table 1 below.

[0123] Table 1

[0124]

[0125]

[0126] As shown in Table 1, when the frequency band is B66, the loss value of the single-band SAW filter is 1.7, and the loss value of the three-band SAW filter is 2. When the frequency band is B3, the loss value of the single-band SAW filter is 1.8, and the loss value of the three-band SAW filter is 2.3 or 2.1. For other frequency bands, please refer to Table 1, and examples will not be repeated. It can be seen that the loss of the single-band SAW filter is smaller.

[0127] In the above-mentioned embodiment of the present application, the first diversity unit includes a first diversity antenna, a signal separation unit and a first single-band surface acoustic wave filter. The first diversity antenna is used to send a mixed signal, and optionally, the mixed signal includes a low-frequency band signal, a mid-frequency band signal and a high-frequency band signal of the main carrier. The signal separation unit is used to separate a mid-high frequency band mixed signal from the mixed signal, and the mid-high frequency band mixed signal is a mid-high frequency band mixed signal of the main carrier. The first single-band surface acoustic wave filter is used to control the first target mid-frequency band signal of the preset mid-frequency band of the main carrier or the first target high-frequency band signal of the preset high frequency band of the main carrier to be sent to the radio frequency transceiver. The method of this embodiment reduces the device loss caused by the use of the dual-band surface acoustic wave filter or the triple-band surface acoustic wave filter by replacing the dual-band surface acoustic wave filter or the triple-band surface acoustic wave filter with the first single-band surface acoustic wave filter in the first diversity unit, thereby improving the user experience.

[0128] In the present application, the first diversity antenna 101 in the first diversity unit 10 can transmit the low-frequency band signal, the mid-frequency band signal and the high-frequency band signal of the main carrier, namely LMHB (PCC), and can also transmit the low-frequency band signal of the subcarrier, namely LB (SCC). Therefore, the first diversity unit 10 is also used to control the first target low-frequency band signal of the preset low-frequency band of the main carrier or the second target low-frequency band signal of the preset low-frequency band of the subcarrier to be sent to the RF transceiver 30.

[0129] See also Figure 6 , Figure 6A structural schematic diagram of another first diversity unit provided in an embodiment of the present application, which includes, in addition to a first diversity antenna 101, a signal separation unit 102 and a first single-band surface acoustic wave filter 103, a second single-pole multi-throw switch 1023 and a first dual-band surface acoustic wave filter 104.

[0130] Optionally, the connection relationship is: the input end of the second single-pole multi-throw switch 1023 is connected to the output end of the first combiner 1021, the output end of the second single-pole multi-throw switch 1023 is connected to the input end of the first dual-band surface acoustic wave filter 104, and the output end of the first dual-band surface acoustic wave filter 104 is connected to the RF transceiver 30.

[0131] The first combiner 1021 is further used to separate a low-frequency signal from the mixed signal sent by the first diversity antenna 101. The mixed signal includes the low-frequency signal of the main carrier, the intermediate frequency signal and the high frequency signal, and also includes the low-frequency signal of the subcarrier. Therefore, the separated low-frequency signal includes both the low-frequency signal of the main carrier and the low-frequency signal of the subcarrier.

[0132] The second single-pole multi-throw switch 1023 is used to control the first target low-frequency band signal that meets the preset low-frequency band of the main carrier or the second target low-frequency band signal that meets the preset low-frequency band of the subcarrier among the separated low-frequency band signals to be sent to the first dual-band SAW filter 104.

[0133] Optionally, the first target low-frequency band signal includes a first low-frequency band signal and a second low-frequency band signal, and the second target low-frequency band signal includes a third low-frequency band signal and a fourth low-frequency band signal.

[0134] Optionally, assuming that the low-frequency band signals separated from the mixed signal by the first combiner 1021 include B20 and B28 of the main carrier, if the second single-pole multi-throw switch 1023 controls the first target low-frequency band signals B20 and B28 that meet the preset low frequency band of the main carrier in the above-mentioned separated low-frequency band signals to pass through, then the dual-band surface acoustic wave filter connected thereto can simultaneously allow the two low-frequency band signals B20 and B28 to pass through, and then B20 and B28 are sent to the RF transceiver 30.

[0135] Optionally, assuming that the low-frequency band signal separated from the mixed signal by the first combiner 1021 includes B20 and B28 of the subcarrier, if the second single-pole multi-throw switch 1023 controls the first target low-frequency band signals B20 and B28 that meet the preset low frequency band of the main carrier in the above-mentioned separated low-frequency band signals to pass through, then the dual-band surface acoustic wave filter connected thereto can simultaneously allow the two low-frequency band signals B20 and B28 to pass through, and then B20 and B28 are sent to the RF transceiver 30.

[0136] Optionally, assuming that the low-frequency band signal separated from the mixed signal by the first combiner 1021 includes B20 of the main carrier and B28 of the subcarrier, if the second single-pole multi-throw switch 1023 controls the first target low-frequency band signals B20 and B28 that meet the preset low frequency band of the main carrier in the above-mentioned separated low-frequency band signals to pass through, then the dual-band surface acoustic wave filter connected thereto can simultaneously allow the two low-frequency band signals B20 and B28 to pass through, and then B20 and B28 are sent to the RF transceiver 30.

[0137] Optionally, the above examples are only used for illustration and do not limit the present application. The low-frequency band signals in the above examples may also be other low-frequency band signals.

[0138] In the present application, the first diversity unit 10 may further include a single-band surface acoustic wave filter 105, the input end of the single-band surface acoustic wave filter 105 is connected to the output end of the second single-pole multi-throw switch 1023, and the output end of the single-band surface acoustic wave filter 105 is connected to the radio frequency transceiver 30. The single-band surface acoustic wave filter 105 is used to control the target low-frequency band signal of the preset low-frequency band to be sent to the radio frequency transceiver 30.

[0139] In the above-mentioned embodiment of the present application, the first diversity unit also includes a second single-pole multi-throw switch and a first dual-band surface acoustic wave filter, the second single-pole multi-throw switch is used to control the first target low-frequency band signal in the low-frequency band signal that conforms to the preset low-frequency band of the main carrier, or the second target low-frequency band signal that conforms to the preset low-frequency band of the subcarrier to be sent to the first dual-band surface acoustic wave filter, the first target low-frequency band signal includes the first low-frequency band signal and the second low-frequency band signal, and the second target low-frequency band signal includes the third low-frequency band signal and the fourth low-frequency band signal. In this embodiment, by setting the first dual-band surface acoustic wave filter in the low-frequency band transmission link of the first diversity unit, two low-frequency band signals can be passed at the same time, so that the radio frequency system can also realize low-frequency band + low-frequency band carrier aggregation, which effectively improves the diversity of frequency band combinations supported by the radio frequency system.

[0140] Optionally, based on the above embodiment, the structural composition of the second diversity unit 20 is described through the following embodiment.

[0141] See also Figure 7 , Figure 7 A schematic structural diagram of a second diversity unit provided in an embodiment of the present application includes a second diversity antenna 201 , a third single-pole multi-throw switch 202 , and a second single-band surface acoustic wave filter 203 .

[0142] Optionally, the second diversity antenna 201, taking ANT4 as an example, can transmit a mid-frequency band signal of a subcarrier and a high-frequency band signal, namely, MHB (SCC).

[0143] Optionally, the connection relationship is: the second diversity antenna 201 is connected to the input end of the third single-pole multi-throw switch 202, the output end of the third single-pole multi-throw switch 202 is connected to the input end of the second single-band surface acoustic wave filter 203, and the output end of the second single-band surface acoustic wave filter 203 is connected to the RF transceiver 30.

[0144] The second diversity antenna 201 is used to transmit the mixed signal of the middle and high frequency bands of the subcarriers.

[0145] The third single-pole multi-throw switch 202 is used to control the second target mid-frequency band signal that meets the preset mid-frequency band of the subcarrier in the mid- and high-frequency band mixed signal of the subcarrier, or the second target high-frequency band signal that meets the preset high-frequency band of the subcarrier to be sent to the second single-band surface acoustic wave filter 203, so that the second target mid-frequency band signal or the second target high-frequency band signal is sent to the RF transceiver 30 through the second single-band surface acoustic wave filter 203.

[0146] Optionally, assuming that the mixed signal includes a mid-frequency signal B1 and a high-frequency signal B7, assuming that the third single-pole multi-throw switch 202 controls the second target mid-frequency signal B1 of the preset mid-frequency band of the subcarrier to pass, then B1 is sent to the RF transceiver 30 through the second single-band surface acoustic wave filter a connected thereto. Assuming that the third single-pole multi-throw switch 202 controls the second target high-frequency signal B7 of the preset high-frequency band of the subcarrier to pass, then B7 is sent to the RF transceiver 30 through the second single-band surface acoustic wave filter b connected thereto.

[0147] Optionally, the signals in the above examples are only used for illustration and do not limit the present application.

[0148] In the above-mentioned embodiment of the present application, the second diversity unit includes a second diversity antenna, a third single-pole multi-throw switch and a second single-band surface acoustic wave filter. The second diversity antenna is used to send a mixed signal of the mid- and high-bands of the subcarrier, and the third single-pole multi-throw switch is used to control the second target mid-frequency band signal that meets the preset mid-frequency band of the subcarrier in the mixed signal of the mid- and high-bands of the subcarrier, or the second target high-frequency band signal that meets the preset high-frequency band of the subcarrier to be sent to the second single-band surface acoustic wave filter, so that the second target mid-frequency band signal or the second target high-frequency band signal is sent to the RF transceiver through the second single-band surface acoustic wave filter. In this embodiment, by setting the second diversity unit, the diversity RF channels of the mid- and high-band signal subcarriers are separated, and there is no need to set a dual-band surface acoustic wave filter or a triple-band surface acoustic wave filter in the diversity RF channel, which reduces the device loss during signal transmission and improves the user experience.

[0149] The radio frequency system in the present application also includes a subcarrier main set unit 40, see Figure 8 , Figure 8A schematic diagram of another RF system structure provided in an embodiment of the present application, wherein a subcarrier main set unit 40 is connected to a RF transceiver 30, and optionally, the subcarrier main set unit 40 is used to control a third target low frequency band signal of a preset low frequency band of a subcarrier, or a third target mid frequency band signal of a preset mid frequency band of a subcarrier, or a third target high frequency band signal of a preset high frequency band of a subcarrier to be sent to the RF transceiver 30.

[0150] The structure of the subcarrier main set unit can be found in Fig. 9 , Fig. 9 This is a structural diagram of a subcarrier main set unit provided in an embodiment of the present application. The subcarrier main set unit includes: a main set antenna 401, a second combiner 402, a fourth single-pole multi-throw switch 403 and a third single-band surface acoustic wave filter 404.

[0151] Optionally, the connection relationship is: the main antenna 401 is connected to the input end of the second combiner 402, the output end of the second combiner 402 is connected to the input end of the fourth single-pole multi-throw switch 403, the output end of the fourth single-pole multi-throw switch 403 is connected to the input end of the third single-band surface acoustic wave filter 404, and the output end of the third single-band surface acoustic wave filter 404 is connected to the RF transceiver.

[0152] Optionally, the main antenna 401 takes ANT3 as an example, and is used to send a mixed signal of low, medium and high frequency bands of a subcarrier.

[0153] The second combiner 402 is used to separate the mixed signal of the middle and high frequency bands of the subcarrier into the low frequency band signal of the subcarrier and the mixed signal of the middle and high frequency bands.

[0154] The fourth single-pole multi-throw switch 403 is used to control the third target mid-frequency band signal that conforms to the preset mid-frequency band of the subcarrier in the mid-high frequency band mixed signal, or the third target high frequency band signal that conforms to the preset high frequency band of the subcarrier is sent to the third single-band surface acoustic wave filter 404, so that the third target mid-frequency band signal or the third target high frequency band signal is sent to the RF transceiver 30 through the third single-band surface acoustic wave filter 404.

[0155] Optionally, in this embodiment, the number of the third single-band surface acoustic wave filters is not limited, and each first single-band surface acoustic wave filter can control the signal of the corresponding preset frequency band to pass through.

[0156] Optionally, assuming that the second combiner 402 separates the mixed signals of the mid-high frequency band, namely B1 and B7, from the mixed signal, if the fourth single-pole multi-throw switch 403 controls the first target mid-frequency band signal B1 in the mixed signal of the mid-high frequency band to pass through, the third single-band surface acoustic wave filter c connected thereto can receive B1, and then B1 is sent to the RF transceiver 30. If the fourth single-pole multi-throw switch 403 controls the first target high-frequency band signal B7 in the preset high frequency band of the subcarrier to pass through, the third single-band surface acoustic wave filter d connected thereto can receive B7, and then B7 is sent to the RF transceiver 30.

[0157] In the above-mentioned embodiment of the present application, the subcarrier main set unit includes a main set antenna, a second combiner, a fourth single-pole multi-throw switch and a third single-band surface acoustic wave filter. The main set antenna is used to send a mixed signal of low, medium and high bands of the subcarrier, the second combiner is used to separate the mixed signal of medium and high bands of the subcarrier into a low-band signal and a mixed signal of medium and high bands of the subcarrier, and the fourth single-pole multi-throw switch is used to control the third target medium-band signal in the mixed signal of medium and high bands that meets the preset medium frequency band of the subcarrier, or the third target high-band signal that meets the preset high frequency band of the subcarrier is sent to the third single-band surface acoustic wave filter, so that the third target medium-band signal or the third target high-band signal is sent to the RF transceiver through the third single-band surface acoustic wave filter. The method of this embodiment reduces the device loss caused by using the dual-band surface acoustic wave filter or the triple-band surface acoustic wave filter by replacing the dual-band surface acoustic wave filter or the triple-band surface acoustic wave filter in the subcarrier main set unit, and improves the user experience.

[0158] Based on the above embodiments, see Fig.10 , Fig.10 A structural schematic diagram of another subcarrier main set unit provided in an embodiment of the present application, which includes, in addition to a main set antenna 401, a second combiner 402, a fourth single-pole multi-throw switch 403 and a third single-band surface acoustic wave filter 404, a fifth single-pole multi-throw switch 405 and a second dual-band surface acoustic wave filter 406.

[0159] Optionally, the connection relationship is as follows: the input end of the fifth single-pole multi-throw switch 405 is connected to the output end of the second combiner 402, the output end of the fifth single-pole multi-throw switch 405 is connected to the input end of the second dual-band surface acoustic wave filter 406, and the output end of the second dual-band surface acoustic wave filter 406 is connected to the RF transceiver 30. And / or, the fifth single-pole multi-throw switch 405 is used to control the third target low-frequency band signal in the low-frequency band signal that meets the preset low-frequency band of the subcarrier to be sent to the second dual-band surface acoustic wave filter 406.

[0160] Optionally, the third target low-frequency band signal includes a fifth low-frequency band signal and a sixth low-frequency band signal.

[0161] Optionally, assuming that the low-frequency band signal separated from the mid- and high-frequency band mixed signal of the subcarrier by the second combiner 402 includes B20 and B28 of the subcarrier, if the fifth single-pole multi-throw switch 405 controls the third target low-frequency band signals B20 and B28 that meet the preset low frequency band of the subcarrier in the above-mentioned separated low-frequency band signals to pass through, the dual-band surface acoustic wave filter connected thereto can simultaneously allow the two low-frequency band signals B20 and B28 to pass through, and then B20 and B28 are sent to the RF transceiver 30.

[0162] In the present application, the subcarrier main set unit 40 may further include a single-band surface acoustic wave filter 407, the input end of the single-band surface acoustic wave filter 407 is connected to the output end of the fifth single-pole multi-throw switch 405, and the output end of the single-band surface acoustic wave filter 407 is connected to the radio frequency transceiver 30. The single-band surface acoustic wave filter 407 is used to control the target low frequency band signal of the preset low frequency band to be sent to the radio frequency transceiver 30.

[0163] In the above-mentioned embodiment of the present application, the subcarrier main set unit also includes a fifth single-pole multi-throw switch and a second dual-band surface acoustic wave filter. The fifth single-pole multi-throw switch is used to control the third target low-frequency band signal in the low-frequency band signal that meets the preset low-frequency band of the subcarrier to be sent to the second dual-band surface acoustic wave filter, and the third target low-frequency band signal includes a fifth low-frequency band signal and a sixth low-frequency band signal. In this embodiment, by setting a second dual-band surface acoustic wave filter in the low-frequency band transmission link of the subcarrier main set unit, two low-frequency band signals can be passed at the same time, so that the radio frequency system can also realize low-frequency band + low-frequency band carrier aggregation, which effectively improves the diversity of frequency band combinations supported by the radio frequency system.

[0164] In the present application, the radio frequency system further includes a first main carrier main set unit and a second main carrier main set unit, wherein the first main carrier main set unit is used to transmit the low frequency band signal of the main carrier, and the second main carrier main set unit is used to transmit the middle frequency band signal and the high frequency band signal of the main carrier. The structure of the first main carrier main set unit 50 is similar to Figure 3A The structure of the second main carrier main set unit 60 is exactly the same as the left figure circled in the middle. Figure 3A The circled picture on the right is exactly the same. Please participate Figure 3A The examples shown will not be described again to avoid redundancy.

[0165] Based on this, the radio frequency system of this application is as follows Fig.11 As shown, Fig.11A schematic diagram of the structure of a radio frequency system provided in an embodiment of the present application includes a first diversity unit 10, a second diversity unit 20, a radio frequency transceiver 30, a subcarrier main set unit 40, a first main carrier main set unit and a second main carrier main set unit 60. The first diversity unit 10, the second diversity unit 20, the subcarrier main set unit 40, the first main carrier main set unit 50 and the second main carrier main set unit 60 are respectively connected to the radio frequency transceiver 30, and the specific composition and function of each unit have been described in the above-mentioned multiple embodiments, and will not be repeated here.

[0166] Optionally, the present application does not limit the types and quantities of the above-mentioned units and the devices involved in the specific units.

[0167] The radio frequency system of the present application separates the diversity radio frequency channels of the main carrier and the subcarrier into a first diversity unit and a second diversity unit, so that the intermediate and high frequency signals of the main carrier and the subcarrier have separate radio frequency paths. Compared with the prior art, there is no need to set a dual-band surface acoustic wave filter or a triple-band surface acoustic wave filter in the existing shared diversity radio frequency channel. Only a single-band surface acoustic wave filter is needed to simultaneously meet the carrier aggregation of intermediate frequency signal + intermediate frequency signal or the carrier aggregation of intermediate frequency signal + high frequency signal, thereby reducing the device loss in the signal transmission process and improving the user experience.

[0168] Optionally, assuming that the RF system is desired to realize carrier aggregation transmission of intermediate frequency signal B1 + intermediate frequency signal B3, the RF system of the present application enables the main carrier of B1 to reach the RF transceiver through the transmission link of the second main carrier main set unit 60, the subcarrier of B1 to reach the RF transceiver through the transmission link of the second diversity unit 20, the main carrier of B3 to reach the RF transceiver through the transmission link of the first diversity unit 10, and the subcarrier of B3 to reach the RF transceiver through the transmission link of the subcarrier main set unit 40.

[0169] Compared with the RF system in the prior art, the RF system in the present application reduces the link loss. As shown in Table 2, when the RF system in some schemes transmits the mid-frequency band signal B2, the total link loss is 4.3582, and the link transmission sensitivity is -98.64dBm. Compared with the standard link transmission sensitivity of -98dBm, the difference is 0.64dBm. The smaller the difference value, the worse the link transmission performance. When the RF system in the present application transmits the mid-frequency band signal B2, the total link loss is 3.5582, and the link transmission sensitivity is -99.41dBm. Compared with the standard link transmission sensitivity of -98dBm, the difference is 1.41dBm. The increase in the difference value improves the link transmission performance. Correspondingly, when the RF system in the present application transmits the mid-frequency band signal B3, compared with the prior art, the link loss is also reduced and the link transmission performance is improved.

[0170] Table 2

[0171]

[0172] The present application also provides a mobile terminal, which includes a main body and a radio frequency system according to any one of the above embodiments.

[0173] It is 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 the present application. The technical solutions of the present application can also be applied to other scenarios. For example, it is known to those skilled in the art that with the evolution of the system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0174] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0175] The steps in the method of the embodiment of the present application can be adjusted in order, combined and deleted according to actual needs.

[0176] The units in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0177] In the present application, the same or similar terminology concepts, technical solutions and / or application scenario descriptions are generally described in detail only the first time they appear. When they appear again later, they are generally not repeated for the sake of brevity. When understanding the technical solutions and other contents of the present application, for the same or similar terminology concepts, technical solutions and / or application scenario descriptions that are not described in detail later, reference can be made to the previous related detailed descriptions.

[0178] In the present application, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0179] The various technical features of the technical solution of the present application can be arbitrarily combined. In order to make the description concise, not all possible combinations of the various 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 the present application.

[0180] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as above, and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, a controlled terminal, or a network device, etc.) to execute the method of each embodiment of the present application.

[0181] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loading and executing computer program instructions on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server, a data center, etc. that contains one or more available media integrated. The available medium can be a magnetic medium, (e.g., a floppy disk, a storage disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state storage disk Solid State Disk (SSD)), etc.

[0182] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A radio frequency system, characterized in that: include: A first diversity unit, a second diversity unit and a radio frequency transceiver, wherein the first diversity unit is used to transmit a low frequency band signal, a mid frequency band signal and a high frequency band signal of a main carrier, and the second diversity unit is used to transmit a mid frequency band signal and a high frequency band signal of a subcarrier; The first diversity unit and the second diversity unit are respectively connected to the radio frequency transceiver; The first diversity unit is used to control a first target mid-frequency band signal of a preset mid-frequency band of a main carrier or a first target high-frequency band signal of a preset high-frequency band of a main carrier to be sent to the radio frequency transceiver; The second diversity unit is used to control a second target mid-frequency band signal of a preset mid-frequency band of a subcarrier or a second target high-frequency band signal of a preset high-frequency band of a subcarrier to be sent to the radio frequency transceiver.

2. The radio frequency system according to claim 1, characterized in that: The first diversity unit is further used to control a first target low frequency band signal of a preset low frequency band of a main carrier or a second target low frequency band signal of a preset low frequency band of a secondary carrier to be sent to the radio frequency transceiver.

3. The radio frequency system according to claim 1, characterized in that: The first diversity unit includes a first diversity antenna, a signal separation unit and a first single-band surface acoustic wave filter; Include at least one of the following: The first diversity antenna is connected to the input end of the signal separation unit, the output end of the signal separation unit is connected to the input end of the first single-band surface acoustic wave filter, and the output end of the first single-band surface acoustic wave filter is connected to the radio frequency transceiver; The first diversity antenna is used to send a mixed signal, wherein the mixed signal includes a low-frequency band signal, a mid-frequency band signal and a high-frequency band signal of a main carrier; The signal separation unit is used to separate a mid-high frequency mixed signal from the mixed signal, wherein the mid-high frequency mixed signal is a mid-high frequency mixed signal of a main carrier; The first single-band surface acoustic wave filter is used to control the first target mid-frequency band signal that conforms to the preset mid-frequency band of the main carrier in the mid- and high-band mixed signal, or the first target high-frequency band signal that conforms to the preset high-frequency band of the main carrier to be sent to the RF transceiver.

4. The radio frequency system according to claim 3, characterized in that: The signal separation unit includes a first combiner and a first single-pole multi-throw switch; Include at least one of the following: The first combiner input end is connected to the first diversity antenna, the first combiner output end is connected to the first single-pole multi-throw switch input end, and the first single-pole multi-throw switch output end is connected to the first single-band surface acoustic wave filter; The first combiner is used to separate the medium and high frequency band mixed signal from the mixed signal sent by the first diversity antenna; The first single-pole multi-throw switch is used to control the first target mid-frequency band signal in the mid-high frequency band mixed signal that conforms to the preset mid-frequency band of the main carrier, or the first target high frequency band signal that conforms to the preset high frequency band of the main carrier is sent to the first single-band surface acoustic wave filter.

5. The radio frequency system according to claim 3, characterized in that: The mixed signal sent by the first diversity antenna also includes a low-frequency band signal of a subcarrier; the first diversity unit also includes a second single-pole multi-throw switch and a first dual-band surface acoustic wave filter; Include at least one of the following: The second single-pole multi-throw switch input end is connected to the first combiner output end, the second single-pole multi-throw switch output end is connected to the first dual-band surface acoustic wave filter input end, and the first dual-band surface acoustic wave filter output end is connected to the radio frequency transceiver; The first combiner is further used to separate a low-frequency band signal from the mixed signal, wherein the low-frequency band signal includes a low-frequency band signal of a main carrier and a low-frequency band signal of a subcarrier; The second single-pole multi-throw switch is used to control the first target low-frequency band signal in the low-frequency band signal that conforms to the preset low-frequency band of the main carrier, or the second target low-frequency band signal that conforms to the preset low-frequency band of the subcarrier to be sent to the first dual-band surface acoustic wave filter.

6. The radio frequency system according to claim 1, characterized in that: The second diversity unit includes a second diversity antenna, a third single-pole multi-throw switch and a second single-band surface acoustic wave filter; Include at least one of the following: The second diversity antenna is connected to the input end of the third single-pole multi-throw switch, the output end of the third single-pole multi-throw switch is connected to the input end of the second single-band surface acoustic wave filter, and the output end of the second single-band surface acoustic wave filter is connected to the radio frequency transceiver; The second diversity antenna is used to transmit a mixed signal of a mid- and high-frequency band of a subcarrier; The third single-pole multi-throw switch is used to control the second target mid-frequency band signal that conforms to the preset mid-frequency band of the subcarrier in the mid-high frequency band mixed signal of the subcarrier, or the second target high frequency band signal that conforms to the preset high frequency band of the subcarrier is sent to the second single-band surface acoustic wave filter, so that the second target mid-frequency band signal or the second target high frequency band signal is sent to the RF transceiver through the second single-band surface acoustic wave filter.

7. The radio frequency system according to any one of claims 1 to 6, characterized in that: The radio frequency system also includes a subcarrier main set unit; The subcarrier main set unit is connected to the radio frequency transceiver; The subcarrier main set unit is used to control the third target low frequency band signal of the subcarrier preset low frequency band, or the third target mid frequency band signal of the subcarrier preset mid frequency band, or the third target high frequency band signal of the subcarrier preset high frequency band to be sent to the RF transceiver.

8. The radio frequency system according to claim 7, characterized in that: The subcarrier main set unit includes a main set antenna, a second combiner, a fourth single-pole multi-throw switch and a third single-band surface acoustic wave filter; Include at least one of the following: The main antenna is connected to the input end of the second combiner, the output end of the second combiner is connected to the input end of the fourth single-pole multi-throw switch, the output end of the fourth single-pole multi-throw switch is connected to the input end of the third single-band surface acoustic wave filter, and the output end of the third single-band surface acoustic wave filter is connected to the radio frequency transceiver; The main antenna is used to send a mixed signal of low, medium and high frequency bands of the subcarrier; The second combiner is used to separate the mid-high frequency band mixed signal of the subcarrier into a low frequency band signal of the subcarrier and a mid-high frequency band mixed signal; The fourth single-pole multi-throw switch is used to control the third target mid-frequency band signal in the mid-high frequency band mixed signal that conforms to the preset mid-frequency band of the subcarrier, or the third target high frequency band signal that conforms to the preset high frequency band of the subcarrier is sent to the third single-band surface acoustic wave filter, so that the third target mid-frequency band signal or the third target high frequency band signal is sent to the RF transceiver through the third single-band surface acoustic wave filter.

9. The radio frequency system according to claim 8, characterized in that: The subcarrier main set unit also includes a fifth single-pole multi-throw switch and a second dual-band surface acoustic wave filter; The fifth single-pole multi-throw switch input end is connected to the second combiner output end, the fifth single-pole multi-throw switch output end is connected to the second dual-band surface acoustic wave filter input end, and the second dual-band surface acoustic wave filter output end is connected to the radio frequency transceiver; and / or, The fifth single-pole multi-throw switch is used to control the third target low-frequency band signal in the low-frequency band signal that meets the preset low-frequency band of the subcarrier to be sent to the second dual-band surface acoustic wave filter.

10. An intelligent terminal, characterized in that: The invention comprises a main body and a radio frequency system as claimed in any one of claims 1 to 9.

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