CN117176197A - Radio frequency circuit and intelligent terminal - Google Patents

Abstract

The application provides a radio frequency circuit and an intelligent terminal, wherein the radio frequency circuit comprises a first main set antenna, a first diversity antenna, a first duplex module, a first power amplifier, a second main set antenna, a second duplex module, a second power amplifier and a radio frequency transceiver; the first duplex module is respectively connected with the first main set antenna and the first power amplifier; the second duplex module is respectively connected with the second main set antenna and the second power amplifier; the radio frequency transceiver is respectively connected with the first duplex module, the first power amplifier, the second duplex module, the second power amplifier and the first diversity antenna. According to the radio frequency circuit and the intelligent terminal provided by the application, the adaptability of a radio frequency architecture is effectively expanded and the user experience is improved by adding the independent main set antenna.

Description

Radio frequency circuit and intelligent terminal

Technical Field

The application relates to the technical field of wireless communication, in particular to a radio frequency circuit and an intelligent terminal.

Background

Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcast. A typical wireless communication system may employ multiple access techniques capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power). Examples of such multiple-access techniques include Code Division Multiple Access (CDMA) systems, time Division Multiple Access (TDMA) systems, frequency Division Multiple Access (FDMA) systems, orthogonal Frequency Division Multiple Access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems.

These multiple access techniques have been adopted in various telecommunications standards to provide a common protocol that enables different wireless devices to communicate at the urban, national, regional, and even global levels. An example of an emerging telecommunication standard is Long Term Evolution (LTE). LTE/LTE-advanced (LTE-a) is an enhanced set of Universal Mobile Telecommunications System (UMTS) mobile standards promulgated by the third generation partnership project (3 GPP). It is designed to better support mobile broadband internet access by improving spectral efficiency, reducing costs, improving services, utilizing new spectrum, and better integrating with other open standards that use OFDMA on the Downlink (DL), SC-FDMA on the Uplink (UL), and multiple-input multiple-output (MIMO) antenna technology. However, as the demand for mobile broadband access continues to grow, there is a need for further improvements in LTE technology.

Because of the cost of the 5G core network and its maturity issues, the 5G base station in NSA mode preferentially accesses the 4G core network (EPC), so Option 3 series (Option 3 x) is the first choice for introducing the eMBB service in the early stage of 5G. The option 3 series architecture is a dual connection with 4G as the primary node and 5G as the secondary node, and is therefore also called ENDC (EUTRA-NR Dual Connection). In such a dual connectivity architecture, the handset has two paths to the core network via either the 4G or 5G base station.

In the course of conception and implementation of the present application, the inventors found that at least the following problems exist: the LTE frequency band and the 5G frequency band main set (except N41) under the current ENDC radio frequency architecture are connected to a main set antenna through a radio frequency transmitting module (TXM); because the radio frequency transmitting module can only be switched on one port at the same time, the low intermediate frequency part of 5G can not be combined with the intermediate frequency part and the high frequency part of LTE to carry out ENDC combination, so that the ENDC combination which can be supported is very limited.

The foregoing description is provided for general background information and does not necessarily constitute prior art.

Disclosure of Invention

Aiming at the technical problems, the application provides a radio frequency circuit and an intelligent terminal, which are used for relieving the problem of limited ENDC combination.

In order to solve the technical problems, the application provides a radio frequency circuit, which comprises a first main set antenna, a first diversity antenna, a first duplex module, a first power amplifier, a second main set antenna, a second duplex module, a second power amplifier and a radio frequency transceiver;

the first duplex module is respectively connected with the first main set antenna and the first power amplifier; the second duplex module is respectively connected with the second main set antenna and the second power amplifier; the radio frequency transceiver is respectively connected with the first duplex module, the first power amplifier, the second duplex module, the second power amplifier and the first diversity antenna.

Optionally, the radio frequency circuit further includes a radio frequency transmitting module, and the radio frequency transmitting module is connected between the second main set antenna and the second duplex module.

Optionally, the first duplexing module comprises at least one diplexer.

Optionally, the second diplexer module comprises at least one diplexer.

Optionally, the radio frequency circuit further includes a double pole double throw switch, a first end of the double pole double throw switch is connected with the first diversity antenna, a second end of the double pole double throw switch is connected with the second main diversity antenna, a third end of the double pole double throw switch is connected with the radio frequency transceiver, and a fourth end of the double pole double throw switch is connected with the radio frequency transmitting module.

Optionally, the radio frequency circuit further includes a first receiving module, a first end of the first receiving module is connected to a third end of the double-pole double-throw switch, a second end of the first receiving module is connected to the radio frequency transceiver, and a third end of the first receiving module is connected to the radio frequency transceiver.

Optionally, the first duplex module includes a second single-pole multi-throw switch, a first frequency band duplexer, a second frequency band duplexer, and a third frequency band duplexer.

Optionally, the first end of the second single-pole multi-throw switch is connected to the first main set antenna, the second end of the second single-pole multi-throw switch is connected to the first end of the first frequency band duplexer, the third end of the second single-pole multi-throw switch is connected to the first end of the second frequency band duplexer, and the fourth end of the second single-pole multi-throw switch is connected to the first end of the third frequency band duplexer.

Optionally, the second end of the first frequency band duplexer is connected with the radio frequency transceiver to process the main set receiving signal of the first frequency band; and the third end of the first frequency band duplexer is connected with the radio frequency transceiver through the first power amplifier so as to process the transmission signal of the first frequency band.

Optionally, the second end of the second frequency band duplexer is connected to the radio frequency transceiver to process the main set received signal of the second frequency band; and the third end of the second frequency band duplexer is connected with the radio frequency transceiver through the first power amplifier so as to process the transmission signal of the second frequency band.

Optionally, the second end of the third frequency band duplexer is connected with the radio frequency transceiver to process the main set receiving signal of the third frequency band; and a third end of the third frequency band duplexer is connected with the radio frequency transceiver through the first power amplifier so as to process the transmission signal of the third frequency band.

Optionally, the second single pole, multi-throw switch comprises a first switch configured to pass the first frequency band signal and a second switch for passing the second frequency band signal and/or the third frequency band signal.

Optionally, the radio frequency circuit further comprises a first filter, a second filter and a third filter.

Optionally, the first filter is connected between the first frequency band duplexer and the radio frequency transceiver, and is configured to filter the main set of received signals in the first frequency band.

Optionally, the second filter is connected between the second frequency band duplexer and the radio frequency transceiver, and is used for filtering the main set received signals of the second frequency band.

Optionally, the third filter is connected between the third frequency band duplexer and the radio frequency transceiver, and is configured to filter the main set of received signals in the third frequency band.

Optionally, a first end of the first receiving module is connected to the double pole double throw switch to receive diversity reception signals.

Optionally, the second end of the first receiving module is connected with the radio frequency transceiver to process diversity receiving signals of a fourth frequency band; and the third end of the first receiving module is connected with the radio frequency transceiver to process diversity receiving signals of a fifth frequency band.

Optionally, the first main set antenna is a full band antenna.

Optionally, the first duplex module is configured to process a main set of transceiving signals in a first communication mode, and the second duplex module is configured to process a main set of transceiving signals in a second communication mode.

Optionally, the first communication mode transmits and receives signals through the first main set antenna and the first diversity antenna.

Optionally, the second communication mode transmits and receives signals through the second main set antenna and the first diversity antenna.

Optionally, the first communication mode is an LTE mode.

Optionally, the second communication mode is a 5G mode.

Optionally, the radio frequency circuit further includes a third main set antenna, where the third main set antenna is connected to the second power amplifier and is used to process a sixth frequency band transmission signal in the second communication mode.

Optionally, the application further provides an intelligent terminal, which comprises the radio frequency circuit.

As described above, the radio frequency circuit and the intelligent terminal can realize the combination of the LTE frequency band and the 5G frequency band full-band ENDC by adding the independent main set antenna, thereby effectively expanding the adaptability of the radio frequency architecture and improving the user experience.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic hardware structure diagram of an intelligent terminal for implementing various embodiments of the present application;

fig. 2 is a schematic diagram of a communication network system according to an embodiment of the present application;

FIG. 3 is a block diagram of an RF circuit according to an embodiment of the present application;

fig. 4 is a diagram illustrating a connection structure of a first duplex module according to an embodiment of the application.

The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments. Specific embodiments of the present application have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the element defined by the phrase "comprising one … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element, and furthermore, elements having the same name in different embodiments of the application may have the same meaning or may have different meanings, the particular meaning of which is to be determined by its interpretation in this particular embodiment or by further combining the context of this particular embodiment.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope herein. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context. Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including" specify the presence of stated features, steps, operations, elements, components, items, categories, and/or groups, but do not preclude the presence, presence or addition of one or more other features, steps, operations, elements, components, items, categories, and/or groups. The terms "or", "and/or", "including at least one of", and the like, as used herein, may be construed as inclusive, or mean any one or any combination. For example, "including at least one of: A. b, C "means" any one of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; a and B and C ", again as examples," A, B or C "or" A, B and/or C "means" any of the following: a, A is as follows; b, a step of preparing a composite material; c, performing operation; a and B; a and C; b and C; a and B and C). An exception to this definition will occur only when a combination of elements, functions, steps or operations are in some way inherently mutually exclusive.

It should be understood that, although the steps in the flowcharts in the embodiments of the present application are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the figures may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily occurring in sequence, but may be performed alternately or alternately with other steps or at least a portion of the other steps or stages.

The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

In the following description, suffixes such as "module", "part" or "unit" for representing elements are used only for facilitating the description of the present application, and have no specific meaning per se. Thus, "module," "component," or "unit" may be used in combination.

The intelligent terminal may be implemented in various forms. For example, the smart terminals described in the present application may include smart terminals such as mobile phones, tablet computers, notebook computers, palm computers, personal digital assistants (Personal Digital Assistant, PDA), portable media players (Portable Media Player, PMP), navigation devices, wearable devices, smart bracelets, pedometers, and stationary terminals such as digital TVs, desktop computers, and the like.

The following description will be given taking a mobile terminal as an example, and those skilled in the art will understand that the configuration according to the embodiment of the present application can be applied to a fixed type terminal in addition to elements particularly used for a moving purpose.

Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present application, the mobile terminal 100 may include: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an a/V (audio/video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111. Those skilled in the art will appreciate that the mobile terminal structure shown in fig. 1 is not limiting of the mobile terminal and that the mobile terminal may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.

The following describes the components of the mobile terminal in detail with reference to fig. 1:

the radio frequency unit 101 may be used for receiving and transmitting signals during the information receiving or communication process, specifically, after receiving downlink information of the base station, processing the downlink information by the processor 110; and, the uplink data is transmitted to the base station. Typically, 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, and the like. In addition, the radio frequency unit 101 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol including, but not limited to, GSM (Global System of Mobile communication, global system for mobile communications), GPRS (General Packet Radio Service ), CDMA2000 (Code Division Multiple Access, 2000, CDMA 2000), WCDMA (Wideband Code Division Multiple Access ), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, time Division synchronous code Division multiple access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution, frequency Division duplex long term evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution, time Division duplex long term evolution), and 5G, among others.

WiFi belongs to a short-distance wireless transmission technology, and a mobile terminal can help a user to send and receive e-mails, browse web pages, access streaming media and the like through the WiFi module 102, so that wireless broadband Internet access is provided for the user. Although fig. 1 shows a WiFi module 102, it is understood that it does not belong to the necessary constitution of a mobile terminal, and can be omitted entirely as required within a range that does not change the essence of the invention.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output 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, or the like. Also, the audio output unit 103 may also provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the mobile terminal 100. The audio output unit 103 may include a speaker, a buzzer, and the like.

The a/V input unit 104 is used to receive an audio or video signal. The a/V input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042, the graphics processor 1041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphics processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted 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 phone call mode, a recording mode, a voice recognition mode, and the like, and can process such sound into audio data. The processed audio (voice) data may be converted into a format output that can be transmitted to the mobile communication base station via the radio frequency unit 101 in the case of a telephone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting the audio signal.

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 may adjust the brightness of the display panel 1061 according to the brightness of ambient light, and the proximity sensor may turn off the display panel 1061 and/or the backlight when the mobile terminal 100 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when stationary, and can be used for applications of recognizing the gesture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; as for other sensors such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that may also be configured in the mobile phone, the detailed description thereof will be omitted.

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

The user input unit 107 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the mobile terminal. Alternatively, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect touch operations thereon or thereabout by a user (e.g., operations of the user on the touch panel 1071 or thereabout by using any suitable object or accessory such as a finger, a stylus, etc.) and drive the corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Optionally, the touch detection device detects the touch azimuth of the user, detects a signal brought by touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, and sends the touch point coordinates to the processor 110, and can receive and execute commands sent from the processor 110. Further, the touch panel 1071 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 107 may include other input devices 1072 in addition to the touch panel 1071. Alternatively, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, mouse, joystick, etc., as specifically not limited herein.

Alternatively, the touch panel 1071 may overlay the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or thereabout, the touch panel 1071 is transferred to the processor 110 to determine the type of touch event, and the processor 110 then provides a corresponding visual output on the display panel 1061 according to the type of touch event. Although in fig. 1, the touch panel 1071 and the display panel 1061 are two independent components for implementing the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 may be integrated with the display panel 1061 to implement the input and output functions of the mobile terminal, which is not limited herein.

The interface unit 108 serves as an interface through which at least one external device can be connected with the mobile terminal 100. For example, the external devices may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. 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.

Memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, and alternatively, the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, memory 109 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs 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, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor, the application processor optionally handling mainly an operating system, a user interface, an application program, etc., the modem processor handling mainly wireless communication. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The mobile terminal 100 may further include a power source 111 (e.g., a battery) for supplying power to the respective components, and preferably, the power source 111 may be logically connected to the processor 110 through a power management system, so as to perform functions of managing charging, discharging, and power consumption management through the power management system.

Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described herein.

In order to facilitate understanding of the embodiments of the present application, a communication network system on which the mobile terminal of the present application is based will be described below.

Referring to fig. 2, fig. 2 is a schematic diagram of a communication network system according to an embodiment of the present application, where the communication network system is an LTE system of a general mobile communication technology, and the LTE system includes a UE (User Equipment) 201, an e-UTRAN (Evolved UMTS Terrestrial Radio Access Network ) 202, an epc (Evolved Packet Core, evolved packet core) 203, and an IP service 204 of an operator that are sequentially connected in communication.

Alternatively, the UE201 may be the terminal 100 described above, which is not described here again.

The E-UTRAN202 includes eNodeB2021 and other eNodeB2022, etc. Alternatively, the eNodeB2021 may connect with other enodebs 2022 over a backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide access for the UE201 to the EPC 203.

EPC203 may include MME (Mobility Management Entity ) 2031, hss (Home Subscriber Server, home subscriber server) 2032, other MMEs 2033, SGW (Serving Gate Way) 2034, pgw (PDN Gate Way) 2035 and PCRF (Policy and Charging Rules Function, policy and tariff function entity) 2036, and so on. Optionally, MME2031 is a control node that handles signaling between UE201 and EPC203, providing bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location registers (not shown) and to hold user specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034 and PGW2035 may provide IP address allocation and other functions for UE201, PCRF2036 is a policy and charging control policy decision point for traffic data flows and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).

IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem ), or other IP services, etc.

Although the LTE system is described above as an example, it should be understood by those skilled in the art that the present application is not limited to LTE systems, but may be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems (e.g., 5G), etc.

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

First embodiment

The present application firstly provides a radio frequency circuit, and fig. 3 is a block diagram of the radio frequency circuit according to an embodiment of the present application.

Referring to fig. 3, the radio frequency circuit includes a first main set antenna 301, a first diversity antenna 302, a first duplex module 303, a first power amplifier 304, a second main set antenna 305, a second duplex module 308, a second power amplifier 309, and a radio frequency transceiver 311.

The first duplex module 303 is connected to the first main set antenna 301 and the first power amplifier 304, respectively. The second duplex module 308 is connected to the second main set antenna 305 and the second power amplifier 309, respectively.

The duplexer is a main accessory of a different-frequency duplex radio station and a relay station, and has the function of isolating the transmitted and received signals and ensuring that the receiving and the transmitting can work normally at the same time. The device consists of two groups of band-pass filters with different frequencies, and avoids the transmission of local transmitting signals to a receiver. Optionally, the first duplexing module 303 comprises one or more diplexers. Optionally, the second diplexer module 308 includes one or more diplexers.

Optionally, the duplexer in LTE mode may be connected between the main set antenna and the LTE power amplifier, and send and receive signals through the main set antenna, where the sent LTE signal may be amplified by the LTE power amplifier.

With continued reference to fig. 3, the rf transceiver 311 is respectively connected to the first duplex module 303, the first power amplifier 304, the second duplex module 308, the second power amplifier 309, and the first diversity antenna 302.

The radio frequency transceiver 311 can provide all signal interfaces needing radio frequency receiving and transmitting for the intelligent terminal, and the radio frequency transceiver 311 sends the information needing to be sent to an external space through the antenna through the radio frequency information received by the antenna. Alternatively, the LTE band signal may be transmitted and received through the first main set antenna 301 and the first diversity antenna 302, and the high-middle-low band signal of 5G may be transmitted and received through the second main set antenna 305 and the first diversity antenna 302.

By separately setting two main set antennas and corresponding two radio frequency paths to be respectively connected with the radio frequency transceiver 311, mutual interference between frequency bands of different systems can be avoided, multiple ENDC combination modes under different communication modes can be realized, and the adaptability of a radio frequency architecture can be effectively expanded.

With continued reference to fig. 3, the radio frequency circuit optionally further includes a radio frequency transmission module 307, and the radio frequency transmission module 307 is connected between the second main set antenna 305 and the second duplex module 308.

Optionally, the first duplexing module comprises at least one diplexer. Similarly optionally, the second diplexer module comprises at least one diplexer.

With continued reference to fig. 3, the radio frequency circuit optionally further includes a double pole double throw switch 306, where a first end of the double pole double throw switch 306 is connected to the first diversity antenna 302, a second end is connected to the second main diversity antenna 305, a third end is connected to the radio frequency transceiver 311, and a fourth end is connected to the radio frequency transmitting module 307.

The single pole multiple throw switch consists of a movable end and a stationary end, the movable end is a so-called "knife" which can be connected with an incoming line. The other multiple throw ends are the output ends, so-called stationary ends, which are connected to other devices. The single-pole multi-throw switch can control the power supply to output in a plurality of different directions.

Alternatively, the double-pole double-throw switch 306 is formed by juxtaposing two single-pole double-throw switches, and each side of the double-pole double-throw switch 306 corresponds to one single-pole double-throw switch.

Optionally, the radio frequency circuit further includes a first receiving module 308, a first end of the first receiving module 308 is connected to a third end of the double pole double throw switch 306, a second end of the first receiving module 308 is connected to the radio frequency transceiver 311, and a third end of the first receiving module 308 is connected to the radio frequency transceiver 311.

Alternatively, the first receiving module 310 is configured to receive the medium-high frequency signal and the low frequency signal separately. In another embodiment, the first receiving module 310 may also receive the medium-high frequency signal and the low frequency signal without distinction.

With continued reference to fig. 3, the double pole double throw switch 306 is respectively connected to the first diversity antenna 302, the second main set antenna 305, the radio frequency transmitting module 307 and the first receiving module 310, and the second duplex module 308 is connected to the second power amplifier 309.

Optionally, some diplexers in 5G mode may use a radio frequency transmitting module 307 to send and receive signals through a double pole double throw switch 306 connected to the second main set antenna 305, where the sent 5G signals may be amplified by a corresponding 5G power amplifier. Diversity receive switches in some LTE modes may be coupled to the first diversity antenna 302 via a double pole double throw switch 306.

Fig. 4 is a diagram illustrating a connection structure of a first duplex module according to an embodiment of the application.

With continued reference to fig. 4, the first duplex module 303 optionally includes a second single pole, multiple throw switch 31, a first frequency band duplexer 32, a second frequency band duplexer 33, and a third frequency band duplexer 34.

The first end of the second single-pole multi-throw switch 31 is connected to the first main set antenna 301, the second end of the second single-pole multi-throw switch 31 is connected to the first end of the first frequency band duplexer 32, the third end of the second single-pole multi-throw switch 31 is connected to the first end of the second frequency band duplexer 33, and the fourth end of the second single-pole multi-throw switch 31 is connected to the first end of the third frequency band duplexer 34.

Alternatively, the first end of the second single pole multi throw switch 31 may be a single pole end, and is connected to the antenna for receiving and transmitting signals in multiple frequency bands. The second end, the third end and the fourth end of the second single-pole multi-throw switch 31 may be multi-throw ends, and the first end is respectively connected in different states, so as to realize the receiving and transmitting of signals in a specific frequency band.

Optionally, the second single pole, multi-throw switch 31 includes a first switch configured to pass the first frequency band signal and a second switch for passing the second frequency band signal and/or the third frequency band signal.

Alternatively, the first frequency band may be a low frequency band of LTE, the second frequency band may be an intermediate frequency band of LTE, and the third frequency band may be a high frequency band of LTE.

Optionally, a second end of the first band duplexer 32 is connected to the rf transceiver 311 to process the primary set of received signals of the first band. The third terminal of the first band duplexer 32 is connected to the rf transceiver 311 through the first power amplifier 304 to process the transmission signal of the first band.

Optionally, a second end of the second band duplexer 33 is connected to the rf transceiver 311 to process the primary set of received signals in the second band. The third end of the second frequency band duplexer 33 is connected with the radio frequency transceiver 311 through the first power amplifier 304 to process the transmission signal of the second frequency band;

Optionally, a second end of the third band duplexer 34 is connected to a radio frequency transceiver 311 to process the primary set of received signals in the third band. The third terminal of the third band duplexer 34 is connected to the rf transceiver 311 through the first power amplifier 304 to process the transmission signal of the third band.

Alternatively, in the LTE mode, the communication frequency band may be divided into a high frequency band, an intermediate frequency band, and a low frequency band. Each diplexer is responsible for processing of different frequency bands. The LTE power amplifier can amplify signals in different frequency bands through different ports.

Optionally, the radio frequency circuit further comprises a first filter, a second filter and a third filter.

The first filter is connected between the first band duplexer 32 and the radio frequency transceiver 311 for filtering the primary set of received signals in the first band. A second filter is connected between the second band duplexer 33 and the rf transceiver 311 for filtering the main set of received signals of the second band. The third filter is connected between the third band duplexer 34 and the rf transceiver 311 for filtering the main set of received signals in the third band.

Wireless communication systems are typically divided into multiple frequency bands and different devices operate in different frequency bands, so the receiving circuitry of each frequency band requires the addition of a bandpass filter to filter out-of-band interference.

Optionally, a first end of the first receiving module 310 is connected to the double pole double throw switch 306 to receive diversity receive signals.

A second terminal of the first receiving module 310 is connected to the radio frequency transceiver 311 to process diversity reception signals of the fourth frequency band. The third terminal of the first receiving module 310 is connected to the radio frequency transceiver 311 to process the diversity-received signal of the fifth frequency band.

In the diversity reception path, diversity reception in a plurality of frequency bands can be performed by using the same diversity antenna by a single-pole multi-throw switch.

Optionally, the first main set antenna 301 is a full band antenna.

Alternatively, the full band antenna may support a high frequency band, an intermediate frequency band, and a low frequency band in the LTE mode. The occupation of each frequency band to the intelligent equipment space and the increase of the complexity of the radio frequency circuit due to the independent arrangement of the antenna are avoided.

Optionally, the first duplexing module 303 is configured to process the primary set transceiving signals of the first communication mode, and the second duplexing module 308 is configured to process the primary set transceiving signals of the second communication mode.

Alternatively, the first duplex module 303 may be used to process the transmission and reception of LTE mode signals, and the second duplex module 308 may be used to process the transmission and reception of 5G mode signals.

Optionally, the first communication mode transmits and receives signals through the first main set antenna 301 and the first diversity antenna 302; and/or the second communication mode transceives signals through the second main set antenna 305 and the first diversity antenna 302.

Optionally, the first communication mode is an LTE mode; and/or the second communication mode is a 5G mode.

Alternatively, in the ENDC combination, the LTE mode signal transmits and receives a main set signal through the first main set antenna 301 and receives a diversity signal through the first diversity antenna 302. The 5G mode signal may transmit and receive a main set signal through the second main set antenna 305 and receive a diversity signal through the first diversity antenna 302. Thus, the low/medium band parts of 5G, such as N5/N8/N12/N20, can be ENDC combined with the medium/high band parts of LTE, such as B1/B2/B3/B4/B7/B40.

Optionally, the radio frequency circuit further comprises a third main set antenna (not shown in the figure). The third main set of antennas may be connected to a second power amplifier 309 for processing the sixth frequency band transmit signals of the second communication mode.

Alternatively, signals in the NR41 frequency band may be transmitted and received through the third main set antenna.

Optionally, the radio frequency circuitry may also include other main set or diversity antennas as is commonly used. Alternatively, the 5G N41/N77/78/79 band part may receive and transmit signals through more antennas.

Second embodiment

The application also provides an intelligent terminal comprising the radio frequency circuit.

By changing the design of part of the front end of the radio frequency circuit and adding one full-Band LMHB antenna, various combinations of LTE Band X+5G Band Y can be realized through two independent radio frequency front end architectures and two independent full-Band LMHB antenna designs, and the combination requirements of ENDC in different countries and regions can be met through different configurations.

Optionally, radio frequency configuration in the configuration list can be adjusted according to different requirements of different regions on frequency bands and ENDC combinations, and support of networks in all regions is achieved through different software controls prefabricated in the intelligent terminal. Alternatively, the indian area ENDC combination requirement is supported by a first configuration sheet and the north american area ENDC combination requirement is satisfied by a second configuration sheet.

Optionally, based on the independent LTE low-medium-high radio frequency configuration scheme of the radio frequency circuit, the 4G mode under the ENDC network can be realized through the independent antenna according to the combination requirements of all frequency bands and ENDC in all the global places, and the combination configuration of the frequency bands in all the areas can be realized by matching with the 5G frequency bands, so that good support of independent networking and non-independent networking in all the areas can be realized.

As described above, the radio frequency circuit and the intelligent terminal can realize the combination of the LTE frequency band and the 5G frequency band full-band ENDC by adding the independent main set antenna, thereby effectively expanding the adaptability of the radio frequency architecture and improving the user experience.

It can be understood that the above scenario is merely an example, and does not constitute a limitation on the application scenario of the technical solution provided by the embodiment of the present application, and the technical solution of the present application may also be applied to other scenarios. For example, as one of ordinary skill in the art can know, with the evolution of the system architecture and the appearance of new service scenarios, the technical solution provided by the embodiment of the present application is also applicable to similar technical problems.

The foregoing embodiment numbers of the present application are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.

The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs.

The units in the device of the embodiment of the application can be combined, divided and deleted according to actual needs.

In the present application, the same or similar term concept, technical solution and/or application scenario description will be generally described in detail only when first appearing and then repeatedly appearing, and for brevity, the description will not be repeated generally, and in understanding the present application technical solution and the like, reference may be made to the previous related detailed description thereof for the same or similar term concept, technical solution and/or application scenario description and the like which are not described in detail later.

In the present application, the descriptions of the embodiments are emphasized, and the details or descriptions of the other embodiments may be referred to.

The technical features of the technical scheme of the application can be arbitrarily combined, and all possible combinations of the technical features in the above embodiment are not described for the sake of brevity, however, as long as there is no contradiction between the combinations of the technical features, the application shall be considered as the scope of the description of the application.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as above, comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, a controlled terminal, or a network device, etc.) to perform the method of each embodiment of the present application.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may 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 the computer program instructions are loaded and executed on a computer, the processes or functions in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable devices. The computer instructions may 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 may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line), or wireless (e.g., infrared, wireless, microwave, etc.). Computer readable storage media can be any available media that can be accessed by a computer or data storage devices, such as servers, data centers, etc., that contain an integration of one or more available media. Usable media may be magnetic media (e.g., floppy disks, storage disks, magnetic tape), optical media (e.g., DVD), or semiconductor media (e.g., solid State Disk (SSD)), among others.

The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the application, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims (10)

1. The radio frequency circuit is characterized by comprising a first main set antenna, a first diversity antenna, a first duplex module, a first power amplifier, a second main set antenna, a second duplex module, a second power amplifier and a radio frequency transceiver;

the first duplex module is respectively connected with the first main set antenna and the first power amplifier; the second duplex module is respectively connected with the second main set antenna and the second power amplifier; the radio frequency transceiver is respectively connected with the first duplex module, the first power amplifier, the second duplex module, the second power amplifier and the first diversity antenna.

2. The radio frequency circuit of claim 1, further comprising a radio frequency transmit module connected between the second main set antenna and the second duplex module.

3. The radio frequency circuit of claim 2, further comprising a double pole double throw switch having a first end connected to the first diversity antenna, a second end connected to the second main set antenna, a third end connected to the radio frequency transceiver, and a fourth end connected to the radio frequency transmission module.

4. The radio frequency circuit of claim 3, further comprising a first receiving module, a first end of the first receiving module connected to the third end of the double pole double throw switch, a second end of the first receiving module connected to the radio frequency transceiver, and a third end of the first receiving module connected to the radio frequency transceiver.

5. The radio frequency circuit of claim 4, wherein a first end of the first receiving module is connected to the double pole double throw switch to receive diversity receive signals;

the second end of the first receiving module is connected with the radio frequency transceiver to process diversity receiving signals of a fourth frequency band; and the third end of the first receiving module is connected with the radio frequency transceiver to process diversity receiving signals of a fifth frequency band.

6. The radio frequency circuit of any one of claims 1 to 5, wherein the first duplexing module comprises a second single pole, multi-throw switch, a first frequency band duplexer, a second frequency band duplexer, a third frequency band duplexer, and further comprising at least one of:

The first end of the second single-pole multi-throw switch is connected with the first main set antenna, the second end of the second single-pole multi-throw switch is connected with the first end of the first frequency band duplexer, the third end of the second single-pole multi-throw switch is connected with the first end of the second frequency band duplexer, and the fourth end of the second single-pole multi-throw switch is connected with the first end of the third frequency band duplexer;

the second end of the first frequency band duplexer is connected with the radio frequency transceiver to process the main set receiving signals of the first frequency band; the third end of the first frequency band duplexer is connected with the radio frequency transceiver through the first power amplifier so as to process the transmission signal of the first frequency band;

the second end of the second frequency band duplexer is connected with the radio frequency transceiver to process the main set receiving signals of the second frequency band; the third end of the second frequency band duplexer is connected with the radio frequency transceiver through the first power amplifier so as to process the transmission signal of the second frequency band;

the second end of the third frequency band duplexer is connected with the radio frequency transceiver to process the main set receiving signals of the third frequency band; and a third end of the third frequency band duplexer is connected with the radio frequency transceiver through the first power amplifier so as to process the transmission signal of the third frequency band.

7. The radio frequency circuit of claim 6, further comprising a first filter, a second filter, and a third filter, further comprising at least one of:

the first filter is connected between the first frequency band duplexer and the radio frequency transceiver and is used for filtering the main set received signals of the first frequency band;

the second filter is connected between the second frequency band duplexer and the radio frequency transceiver and is used for filtering the main set received signals of the second frequency band;

the third filter is connected between the third frequency band duplexer and the radio frequency transceiver and is used for filtering the main set received signals of the third frequency band.

8. The radio frequency circuit of any of claims 1 to 5, wherein the first duplexing module is configured to process a main set of transmit and receive signals for a first communication mode and the second duplexing module is configured to process a main set of transmit and receive signals for a second communication mode.

9. The radio frequency circuit of claim 8, further comprising at least one of:

the first communication mode receives and transmits signals through the first main set antenna and the first diversity antenna; and/or the second communication mode receives and transmits signals through the second main set antenna and the first diversity antenna;

The first communication mode is an LTE mode; and/or, the second communication mode is a 5G mode;

the radio frequency circuit further comprises a third main set antenna, wherein the third main set antenna is connected with the second power amplifier and is used for processing a sixth frequency band transmission signal of the second communication mode.

10. An intelligent terminal comprising a radio frequency circuit as claimed in any one of claims 1 to 9.