CN114301489A - Radio frequency front-end module, signal processing method, mobile terminal and storage medium - Google Patents

Radio frequency front-end module, signal processing method, mobile terminal and storage medium Download PDF

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Publication number
CN114301489A
CN114301489A CN202111657480.5A CN202111657480A CN114301489A CN 114301489 A CN114301489 A CN 114301489A CN 202111657480 A CN202111657480 A CN 202111657480A CN 114301489 A CN114301489 A CN 114301489A
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China
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radio frequency
signal
signal transmission
antenna
frequency band
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CN202111657480.5A
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Chinese (zh)
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陈林
杨道庄
蒋与伦
邓乐安
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Shenzhen Transsion Holdings Co Ltd
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Shenzhen Transsion Holdings Co Ltd
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Priority to CN202111657480.5A priority Critical patent/CN114301489A/en
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Abstract

The application discloses radio frequency front end module, signal processing method, mobile terminal and storage medium, this radio frequency front end module includes antenna link, radio frequency receiving and dispatching end and radio frequency processing circuit, wherein, radio frequency processing circuit with antenna link reaches radio frequency receiving and dispatching end is connected, radio frequency processing circuit includes two at least signal transmission channels, signal transmission channel when switching on, intercommunication antenna link and radio frequency receiving and dispatching end to the signal of an output signal frequency channel. The performance of the radio frequency front end module is improved, and the communication quality of the terminal is improved.

Description

Radio frequency front-end module, signal processing method, mobile terminal and storage medium
Technical Field
The present application relates to the field of antenna technologies, and in particular, to a radio frequency front end module, a signal processing method, a mobile terminal, and a storage medium.
Background
An antenna on a mobile terminal such as a mobile phone is a device for transmitting or receiving a signal. As the functions of the mobile terminal are increased, a number of functions require corresponding antennas, and the number of required antennas is also increased.
In the course of conceiving and implementing the present application, the inventors found that at least the following problems existed: for example, in a 5G device, 4 antennas are provided in a 5G N41 frequency band, one or several N41 antennas are required to be shared by 5GN77/N78/N79, and this shared antenna scheme needs to use one frequency divider of N41 and N77-N79, and the frequency division is implemented by using the frequency divider, so that the insertion loss of a signal is increased in signal processing, which leads to the degradation of antenna performance.
The foregoing description is provided for general background information and is not admitted to be prior art.
Disclosure of Invention
The present application mainly aims to provide a radio frequency front end module, a signal processing method, a mobile terminal and a storage medium, and aims to improve the performance of the radio frequency front end module.
In order to achieve the above object, the present application provides a radio frequency front end module, the radio frequency front end module includes an antenna connection end, a radio frequency transceiving end and a radio frequency processing circuit, the radio frequency processing circuit with the antenna connection end reaches the radio frequency transceiving end is connected, the radio frequency processing circuit includes at least two signal transmission channels, when the signal transmission channel is conducted, the signal transmission channel is communicated with the antenna connection end reaches the radio frequency transceiving end to output a signal of a signal frequency band.
Optionally, the rf front-end module further includes: and the gating controller is connected with the radio frequency processing circuit and used for detecting the signal frequency band received by the radio frequency front-end module and controlling one of the at least two signal transmission channels matched with the received signal frequency band to be conducted according to the received signal frequency band so as to communicate the antenna connecting end with the radio frequency transceiving end.
Optionally, the gating controller is further configured to detect a signal frequency band to be transmitted by the radio frequency front end module, and control one of the at least two signal transmission channels, which is matched with the received signal frequency band, to be conducted according to the signal frequency band to be transmitted, so as to communicate the antenna connection end and the radio frequency transceiving end.
Optionally, the gating controller is configured to control the first signal transmission path to communicate the radio frequency transceiver end with the antenna connection end when the detected frequency band of the signal received by the radio frequency front-end module or to be transmitted is a first preset frequency band; or the like, or, alternatively,
and when the detected frequency band of the signal received by the radio frequency front end module or to be transmitted is a second preset frequency band, controlling the second signal transmission channel to communicate the radio frequency receiving and transmitting end with the antenna connecting end.
Optionally, the first preset frequency band is any one or a combination of N77, N78 and N79; the second preset frequency band is N41.
Optionally, the signal transmission channel includes a first signal transmission path and a second signal transmission path, and the radio frequency processing circuit further includes a first auxiliary port, a first antenna connection port, and at least one first signal transceiving port; wherein, at least one of the following is included:
the first antenna connection port is used for connecting a first end of the first signal transmission path and a first end of the second signal transmission path;
the first signal transceiving port is used for connecting a second end of the first signal transmission channel with the radio frequency transceiving end;
the first auxiliary port is used for connecting the second end of the second signal transmission path with the radio frequency transceiving end.
Optionally, the first signal transmission path includes a first path selection switch, and the first path selection switch is connected between the first antenna connection port and the first signal transceiving port; and/or the presence of a gas in the gas,
the second signal transmission path includes a second path selection switch connected between the first path selection switch and the first auxiliary port.
Optionally, the first signal transceiving ports include two first signal transceiving ports, the first signal transmission path includes two signal transmission branches, first ends of the two signal transmission branches are both connected to the antenna connection end, and second ends of the two signal transmission branches are correspondingly connected to the two first signal transceiving ports.
Optionally, the number of the radio frequency processing circuits is two, and each of the radio frequency processing circuits is serially connected between one of the antenna connection terminals and the radio frequency transceiving terminal.
Optionally, one of the two rf processing circuits is an L-PAMID module, and the other of the two rf processing circuits is an LFEM module.
The application also provides a mobile terminal, the mobile terminal includes radio frequency antenna, radio frequency transceiver and as above the radio frequency front end module, the radio frequency antenna with the antenna connection end of radio frequency front end module is connected, the radio frequency transceiver with the radio frequency transceiver of radio frequency front end module is connected.
Optionally, the radio frequency antennas include at least two, and the at least two radio frequency antennas include a main set radio frequency antenna and a diversity radio frequency antenna, respectively.
The application also provides a signal processing method of the radio frequency front end module, which is applied to the radio frequency front end module, wherein the radio frequency front end module comprises an antenna connecting end, a radio frequency processing circuit and a radio frequency transceiving end which are sequentially connected, and the radio frequency processing circuit is integrated with at least two signal transmission channels; the method comprises the following steps:
detecting a signal frequency band received or to be transmitted by the radio frequency front end module;
and controlling one of the at least two signal transmission channels matched with the signal frequency band to be conducted so as to communicate the antenna connecting end and the radio frequency transceiving end.
Optionally, the step of controlling the conduction of one of the at least two signal transmission channels, which is matched with the signal frequency band, to communicate the antenna connection end and the radio frequency transceiving end includes:
when the signal frequency band is a first preset frequency band, controlling the first signal transmission channel to communicate the radio frequency transceiving end and the antenna connecting end; and/or the presence of a gas in the gas,
and when the signal frequency band is a second preset frequency band, controlling the second signal transmission channel to communicate the radio frequency transceiving end and the antenna connecting end.
Optionally, the first signal transmission path includes a first signal transmission branch and a second signal transmission branch;
the step of controlling the first signal transmission path to communicate the radio frequency transceiving end with the antenna connection end includes:
when the signal frequency band is the first preset frequency band and is a first type of network environment, controlling a first signal transmission branch corresponding to the first type of network environment to communicate the radio frequency transceiving end and the antenna connecting end; and/or the presence of a gas in the gas,
and when the signal frequency band is the first preset frequency band and is in a second type of network environment, controlling a second signal transmission branch corresponding to the second type of network environment to communicate the radio frequency transceiving end and the antenna connecting end.
The present application further proposes a mobile terminal, the mobile terminal including: a memory, a processor, optionally, a signal processing program stored on the memory, the signal processing program implementing the steps of the signal processing method as described above when executed by the processor.
The present application also proposes a readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the signal processing method of the rf front-end module as described above.
The embodiment of the application is based on that the radio frequency processing circuit receives radio frequency signals of at least two different frequency bands, and realizes that the radio frequency signals of two different frequencies are respectively transmitted through two internal signal transmission channels. The application can reduce the use of the frequency divider, thereby simplifying the process of processing signals by the frequency divider, reducing the insertion loss caused by the frequency divider and being beneficial to improving the performance of the radio frequency front-end module. Meanwhile, the PCB layout of the mobile terminal electric control board can be simplified, the space distance between devices of the radio frequency front-end module is increased, and the signal interference between the devices can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic hardware structure diagram of a mobile terminal implementing various embodiments of the present application;
fig. 2 is a communication network system architecture diagram according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a radio frequency front end module according to a first embodiment of the present application;
fig. 4 is a schematic structural diagram of a radio frequency front end module according to a second embodiment of the present application;
FIG. 5 is a schematic diagram of an embodiment of the signal processing circuit shown in FIG. 4;
fig. 6 is a flowchart illustrating a signal processing method of a radio frequency front end module according to an embodiment;
FIG. 7 is a schematic flow chart of a further refinement of step S200 in FIG. 6;
fig. 8 is a schematic flow chart of further refinement of step S211 in fig. 7.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
10 Radio frequency antenna 22 Second signal transmission path
20 Radio frequency processing circuit ANT13 Main set radio frequency antenna
30 Radio frequency transceiver ANT14 Diversity radio frequency antenna
40 Gating controller 211 First path selection switch
21 First signal transmission path 221 Second path selection switch
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended 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 recitation of an element by the phrase "comprising an … …" does not exclude the presence of additional like elements in the process, method, article, or apparatus that comprises the element, and optionally, identically named components, features, and elements in different embodiments of the present application may have different meanings, as may be determined by their interpretation in the embodiment or by their further context within the embodiment.
It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish 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 "when … …" or "in response to a determination", depending on the context. Also, 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," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, species, and/or groups thereof. The terms "or," "and/or," "including at least one of the following," and the like, as used herein, are to be construed as inclusive or mean any one or any combination. For example, "includes at least one of: 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 ", again for 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 occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.
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, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown 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 multiple stages that are not necessarily performed at the same time, but may be performed at different times, in different orders, and may be performed alternately or at least partially with respect to other steps or sub-steps of other steps.
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 phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
It should be noted that step numbers such as S10 and S20 are used herein for the purpose of more clearly and briefly describing the corresponding content, and do not constitute a substantial limitation on the sequence, and those skilled in the art may perform S20 first and then S10 in specific implementation, which should be within the scope of the present application.
It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for the convenience of description of the present application, and have no specific meaning in themselves. Thus, "module", "component" or "unit" may be used mixedly.
The smart terminal may be implemented in various forms. For example, the smart terminal described in the present application may include smart terminals such as processors, tablet computers, notebook computers, palmtop computers, Personal Digital Assistants (PDAs), Portable Media Players (PMPs), navigation devices, wearable devices, smart bands, pedometers, and fixed terminals such as Digital TVs, desktop computers, and the like.
The following description will be given taking a mobile terminal as an example, and it will be understood by those skilled in the art 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 mobile purposes.
Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present application, the mobile terminal 100 may include: RF (Radio Frequency) unit 101, WiFi module 102, audio output unit 103, a/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The following describes each component of the mobile terminal in detail with reference to fig. 1:
the radio frequency unit 101 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, receive downlink information of a base station and then process the downlink information to the processor 110; in addition, uplink data is transmitted to the base station. Typically, 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 can also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communications), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division duplex-Long Term Evolution), TDD-LTE (Time Division duplex-Long Term Evolution, Time Division Long Term Evolution), 5G, and so on.
WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband internet access for the user. Although fig. 1 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing 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 call 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 related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.
The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the 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 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone 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 audio signals.
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 that may adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that may turn off the display panel 1061 and/or the backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.
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 (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 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 a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a 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 a touch orientation of a user, detects a signal caused by a touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. Optionally, 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, a mouse, a joystick, and the like, and are not limited thereto.
Alternatively, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.
The interface unit 108 serves as an interface through which at least one external device is 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 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 external devices 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 external devices.
The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a program storage area and a data storage area, and optionally, the program storage area may store an operating system, an application program (such as a sound playing function, an image playing function, and the like) required by at least one function, and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the 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 operating 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, optionally, the application processor mainly handles operating systems, user interfaces, application programs, etc., and the modem processor mainly handles wireless communications. 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 supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via 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 in detail 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 is described below.
Referring to fig. 2, fig. 2 is an architecture diagram of a communication Network system according to an embodiment of the present disclosure, where the communication Network system is an LTE system of a universal mobile telecommunications 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) 203, and an IP service 204 of an operator, which are in communication connection in sequence.
Optionally, the UE201 may be the terminal 100 described above, and is not described herein again.
The E-UTRAN202 includes eNodeB2021 and other eNodeBs 2022, among others. Alternatively, the eNodeB2021 may be connected with other enodebs 2022 through a backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide the UE201 access to the EPC 203.
The EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving gateway) 2034, a PGW (PDN gateway) 2035, and a PCRF (Policy and Charging Rules Function) 2036, and the like. Optionally, the MME2031 is a control node that handles signaling between the UE201 and the EPC203, providing bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location register (not shown) and holds subscriber specific information about service characteristics, data rates, etc. All user data may be transmitted through SGW2034, PGW2035 may provide IP address assignment for UE201 and other functions, and 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).
The IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem), or other IP services, among others.
Although the LTE system is described as an example, it should be understood by those skilled in the art that the present application is not limited to the LTE system, but may also be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems (e.g. 5G), and the like.
Based on the above mobile terminal hardware structure and communication network system, various embodiments of the present application are provided.
First embodiment
The application provides a radio frequency front end module, which can be applied to the mobile terminal of the above embodiment.
Optionally, the mobile terminal may be a processor, a tablet, a smart wearable device, or the like, and the mobile terminal includes a plurality of radio frequency antennas and a wireless antenna to implement a communication function of the mobile terminal, and the plurality of radio frequency antennas further include a main radio frequency antenna and a diversity radio frequency antenna. The main antenna is responsible for transmitting and receiving radio frequency signals, the diversity antenna only receives and does not transmit radio frequency signals, and the main chip of the mobile terminal combines the signals received from the two antennas so as to obtain diversity gain. The mobile terminal generally supports multiple network systems, such as a 5G network system (5GNR, fifth generation mobile communication technology), an LTE network system (Long Term Evolution, fourth generation mobile communication technology), a 3G network system, and a 2G network system. The LTE network system is a 4G network system. The application is described by taking an example that a mobile terminal can support 5G communication, the mobile terminal can be used as a 5G communication device, when the 5G communication device communicates with a base station or other 5G communication devices, the 5G communication device needs to transmit an uplink signal to the outside (the base station or other 5G communication devices) and receive a downlink signal from the outside (the base station or other 5G communication devices), so that data interaction between the mobile terminal and the base station or other 5G communication devices is realized. In order to realize high-rate downloading, at least 4 downlink antennas are required on a 5G communication device, and N41 is usually used as the main frequency band. At present, at least two antennas of 4 downlink antennas of N41 need to be co-antenna with 5G N77/N78/N79. That is, the N41 band and the N77/N78/N79 band implement reception and/or transmission of signals through one antenna. This common antenna scheme requires the use of one divider of N41 and N77-N79. After receiving signals from the antenna, the signals are subjected to frequency division by a frequency divider to realize frequency band separation of N41 and N77-N79, and then are subjected to modules of N41 and N77-N79 respectively. The frequency divider is adopted to realize frequency division, so that the loss of signals can be increased in signal processing, meanwhile, the space of the device and peripheral elements thereof needs to be considered in circuit layout, the size of the mobile terminal is easily increased, signal interference among the devices needs to be considered, and a plurality of disadvantages are brought to a radio frequency front end module of the mobile terminal.
Referring to fig. 3 and 4, in order to solve the above problem, in an embodiment of the present application, a radio frequency front end module is provided, where the radio frequency front end module includes an antenna connection terminal, a radio frequency transceiver terminal, and a radio frequency processing circuit 20, the radio frequency processing circuit 20 is connected to the radio frequency antenna 10 through the antenna connection terminal, the radio frequency processing circuit 20 integrates at least two signal transmission channels, and each signal transmission channel can communicate with the antenna connection terminal and the radio frequency transceiver terminal when being turned on, so as to output a signal in a signal frequency band.
Optionally, the radio frequency transceiver 30 is configured to connect to a radio frequency transceiver 30, and the radio frequency transceiver 30 is connected to the second end of the first signal transmission path 21 and the second end of the second signal transmission path 22 through the radio frequency transceiver; optionally, the antenna connection terminal is used for connecting a radio frequency antenna to receive or transmit at least two signal frequency bands.
Optionally, the number of the signal transmission channels may be two, or may be more than two, in each embodiment of the present application, two signal transmission channels are described as an example, the two signal transmission channels are respectively a first signal transmission path 21 and a second signal transmission path 22, and a first end of the first signal transmission path 21 and a first end of the second signal transmission path 22 are both connected to the radio frequency antenna 10 through an antenna connection end.
Optionally, the rf front-end module further includes: a gating controller 40 connected to the rf processing circuit 20, where the gating controller 40 is configured to detect a frequency band of a signal received/to-be-transmitted by the rf front-end module, and control one of the first signal transmission path 21 and the second signal transmission path 22, which matches the frequency band of the signal received by the rf front-end module, to switch on the antenna connection terminal 10 and the rf transceiver terminal 30.
In this embodiment, the rf antenna 10 may be a main rf antenna ANT13 or a diversity rf antenna ANT14, and when the rf antenna 10 is the main rf antenna ANT13, the first signal transmission path 21 and the second signal transmission path 22 may be configured to receive and transmit signals of different frequency bands. When the rf antenna 10 is a diversity rf antenna ANT14, the first signal transmission path 21 and the second signal transmission path 22 may be used to receive signals of different frequency bands. The embodiment takes the rf antenna 10 as the main rf antenna ANT13 and is capable of receiving and transmitting signals as an example, and the embodiment in which the rf antenna 10 is the diversity rf antenna ANT14 and is capable of receiving can be understood with reference to the embodiment of the main rf antenna ANT 13.
The rf processing circuit 20 may amplify, filter and switch reception control of rf signals of different frequency bands received by the antenna connection terminal. The rf processing circuit 20 may be implemented by using an rf front-end module, which may be integrated with various devices for performing receiving processing on an rf signal, such as a filter, a Low Noise Amplifier (LNA), a power divider, and the like. Alternatively, the rf front-End Module may be implemented by using an L-PAMID Module 23(LNA + Power Amplifier Module with Integrated Duplexer), an internal Integrated LNA (low noise Amplifier) Module + Integrated MMMB PA (multi-band Power Amplifier) + rf switch Module, or an LFEM Module 24(LNA + front End Module), and an internal Integrated Div FEM (diversity front-End Module) and LNA Module (low noise Amplifier). The rf processing circuit 20 may amplify, filter, and switch transmission/reception control of rf signals of different frequency bands output by the rf transceiver 30. Optionally, the rf processing circuit 20 may further include a Filter (Filter), an Antenna tuner (Antenna tuner), and the like; alternatively, a multi-frequency Power Amplifier (PA) may perform rf signal amplification for the transmit and receive paths. The filter can retain signals in a specific frequency band and filter out signals which are not needed by interference. The duplexer may consist of two sets of band-stop filters of different frequencies for achieving isolation of the transmit and receive signals. The radio frequency switch can realize the switching of the receiving and the transmitting of the radio frequency signals and the switching of different frequency bands. Low noise amplifier-is mainly used for amplification of small signals in the receive path. The antenna tuner may provide impedance matching between the rf transceiver 30 and the rf antenna 10, improving the efficiency of the antenna over a particular frequency band. Two signal transmission paths are further integrated in the rf processing circuit 20, wherein one signal transmission path may be used for transmitting signals in the N41 frequency band, and the other signal transmission path may be used for transmitting signals in multiple frequency bands of N77-N79.
Alternatively, the radio frequency transceiver 30 may be used to transmit radio frequency signals and wireless signals, and the radio frequency transceiver 30 may implement carrier aggregation of multiple signals. The radio frequency transceiver terminal has a plurality of radio frequency transmitting ports and a plurality of radio frequency receiving ports, which are respectively connected to the radio frequency transceiver 30, so that the radio frequency transceiver 30 can transmit signals of different frequency bands and can also receive signals of different frequency bands.
The mobile terminal can support the detection of various network type information, and the mobile terminal can know the network environment around the mobile terminal, such as base stations existing around the mobile terminal and information such as wireless parameters of the base stations sensed by the mobile terminal. Optionally, the radio parameter information includes signal frequency bands supported by the base station. The gating controller 40 may be integrated in the radio frequency transceiving terminal 30, or may be implemented by a processor of the mobile terminal, where the gating controller 40 may be capable of determining a current environment of the mobile terminal, receiving or transmitting a signal in the network environment, determining a communication frequency band of the received or transmitted signal according to the received or transmitted signal of the mobile terminal, and analyzing frequency band information, thereby determining and controlling a corresponding signal transmission channel in the radio frequency processing circuit 20 to implement signal transmission.
Optionally, after the radio frequency antenna 10 receives radio frequency signals of different frequency bands, the radio frequency processing circuit 20 controls, according to the frequency band corresponding to the radio frequency signal, a corresponding transmission path of the two signal transmission paths to be conducted, so as to communicate the radio frequency antenna 10 and the radio frequency transceiver 30, so that the corresponding frequency band can be output on the transmission path matched with the corresponding frequency band, and the radio frequency signals of different frequency bands received by the same radio frequency antenna 10 can be transmitted to the radio frequency transceiver 30 through the two signal transmission paths. Based on this, the gating controller 40 can control two radio frequency signals with different frequencies to be transmitted or received by one radio frequency antenna 10, so that half of the number of antennas can be saved, and the utilization rate of the antennas is improved. Similarly, in the process of transmitting the radio frequency signal, two different radio frequency signals generated by the radio frequency transceiver 30 are processed by the radio frequency processing circuit 20, and then can be transmitted to the radio frequency antenna 10 through a signal transmission path corresponding to the frequency band of the radio frequency signal in the two signal transmission paths, and then transmitted through the radio frequency antenna 10.
Compared with the method that a frequency divider is arranged between the rf processing circuit 20 and the rf antenna 10, and frequency division processing is performed on two rf signals with different frequencies by the frequency divider, in the embodiment of the present application, the rf processing circuit 20 receives at least two rf signals with different frequency bands, and two signal transmission paths inside the rf processing circuit respectively transmit the two rf signals with different frequencies. The application can reduce the use of the frequency divider, thereby simplifying the process of processing signals by the frequency divider, reducing the insertion loss caused by the frequency divider and being beneficial to improving the antenna performance of the radio frequency front-end module. Meanwhile, the PCB layout of the mobile terminal electric control board can be simplified, the space distance between devices of the radio frequency front-end module is increased, and the signal interference between the devices can be reduced.
It can be understood that, in the embodiment of the present application, two signal transmission paths of the rf processing circuit 20 may be implemented by using, for example, the L-PAMID module 23 or by using a radio frequency switch in the LFEM module 24, and in practical application, the gating controller 40 outputs a corresponding control signal according to a frequency band of a signal to be received/transmitted, so as to control a corresponding path in the signal transmission path to be turned on, and achieve that signals in two different frequency bands can be received by the same rf antenna 10 and then output to the rf transceiver 30, or signals in two different frequency bands can be transmitted by the same rf antenna 20, without increasing a hardware structure and without changing an internal structure in the rf processing circuit, so that the antenna performance of the rf front-end module can be improved under the condition that the original working performance of the rf processing circuit 20 is affected.
Referring to fig. 3 and 4, in an embodiment, the gating controller 40 may be configured to control the first signal transmission path 21 to connect the rf transceiving end and the antenna connection end when the detected frequency band of the signal received/to-be-transmitted by the rf front-end module is a first preset frequency band; and the number of the first and second groups,
and when the detected frequency band of the signal received/to-be-transmitted by the radio frequency front end module is a second preset frequency band, controlling the second signal transmission passage 22 to communicate the radio frequency transceiving end with the antenna connecting end.
Optionally, the first preset frequency band is any one of N77, N78, and N79; the second preset frequency band is N41. Optionally, the frequency range corresponding to the N41 frequency band is 2496MHz-2690MHz, the frequency range corresponding to the N77 frequency band is 3300MHz-4200MHz, the frequency range corresponding to the N78 frequency band is 3300MHz-3800MHz, and the frequency range corresponding to the N79 frequency band is 4400MHz-5000 MHz.
In this embodiment, a register is further integrated in the rf processing circuit 20, so as to adapt to different network environments, different logic values can be written into the register of the rf processing circuit 20, and after a signal is accessed from the rf antenna 10, the signal can be switched to the first signal transmission path 21, i.e., the N77-N79 frequency band path, or the second signal transmission path 22, i.e., the N41 path through the antenna connection end. Alternatively, different logic values may be stored in a memory in the mobile terminal, for example, in the NV RAM, and when signals of different network frequency bands occur, the processor may automatically invoke these parameters to control the conduction of the first signal transmission path 21 or the second signal transmission path 22, so as to implement the switching of the related functions, and complete the reception or transmission of two signals of different frequency bands through the same antenna connection terminal connected to the rf antenna 10.
Second embodiment
Referring to fig. 5, in an embodiment, the rf processing circuit 20 further includes a first auxiliary port AUX1, a first antenna connection port ANT1, and at least one first signal transceiving port; wherein, at least one of the following is included:
the first antenna connection port ANT1 is used to connect the first end of the first signal transmission path 21 and the first end of the second signal transmission path 22 to the antenna connection terminal;
the first signal transceiving port is used for connecting a second end of the first signal transmission path 21 with the radio frequency transceiving end;
the first auxiliary port AUX1 is used to connect the second end of the second signal transmission path 22 to the rf transceiving end.
In this embodiment, the first antenna connection port ANT1, the first signal transmission path 21 and the first signal transceiving port form a signal transmission path of a first predetermined frequency band. Optionally, when receiving a signal, the rf antenna 10 transmits the received signal to the first antenna connection port ANT1, and when the processor determines that the frequency band of the signal received by the rf antenna 10 matches a first preset frequency band of the first signal transmission path 21, the processor controls the first signal transmission path 21 to be turned on, and at this time, the signal of the first preset frequency band is transmitted to the rf transceiver 30 through the first antenna connection port ANT1, the first signal transmission path 21, and the first signal transceiving port. When transmitting a signal, the radio frequency transceiver 30 transmits the signal to be transmitted to the first signal transceiving port, and the processor determines, according to the frequency band of the signal to be transmitted by the radio frequency transceiver 30, that the signal to be transmitted matches a first preset frequency band of the first signal transmission path 21, and controls the first signal transmission path 21 to be conducted, and at this time, the signal of the first preset frequency band is transmitted to the radio frequency antenna 10 through the first signal transceiving port, the first signal transmission path 21 and the first antenna connection port ANT1, so that the signal is radiated through the radio frequency antenna 10.
The first antenna connection port ANT1, the second signal transmission path 22 and the first auxiliary port AUX1 form a signal transmission path of a second predetermined frequency band. Optionally, when receiving a signal, the rf antenna 10 transmits the received signal to the first antenna connection port ANT1, and when the processor determines that the frequency band of the signal received by the rf antenna 10 matches a second preset frequency band of the second signal transmission path 22, the processor controls the second signal transmission path 22 to be turned on, and at this time, the signal in the second preset frequency band is transmitted to the rf transceiver 30 through the first antenna connection port ANT1, the second signal transmission path 22 and the first auxiliary port AUX 1. When transmitting a signal, the radio frequency transceiver 30 transmits the signal to be transmitted to the first auxiliary port AUX1, and when the processor determines that the signal frequency band to be transmitted by the radio frequency transceiver 30 matches a second preset frequency band of the second signal transmission path 22, the processor controls the second signal transmission path 22 to be conducted, and at this time, the signal of the second preset frequency band is transmitted to the radio frequency antenna 10 through the first auxiliary port AUX1, the second signal transmission path 22 and the first antenna connection port ANT1, so that the signal is radiated through the radio frequency antenna 10.
Optionally, when the rf processing circuit 20 is implemented by using an N77-N79 rf front-end module, the first signal transmission path 21 is used to transmit signals of any frequency band N77/N78/N79, and the second signal transmission path 22 is used to transmit signals of a frequency band N41. In this embodiment, an auxiliary port (i.e., the first auxiliary port AUX1) of the rf processing circuit 20 is utilized to support signal transmission in the N41 frequency band, and signals in the N41 frequency band are transmitted between the rf antenna 10 and the rf transceiver 30 through the first auxiliary port AUX 1. The signals in the N77-79 frequency band are transmitted between the rf antenna 10 and the rf transceiver 30 directly through the first signal transceiving port without passing through the auxiliary port.
When the rf processing circuit 20 is implemented by using an N41 rf front-end module, the first signal transmission path 21 is used for transmitting signals of an N41 frequency band, and the second signal transmission path 22 is used for transmitting signals of any one of N77/N78/N79 frequency bands. In this embodiment, an auxiliary port (i.e., the first auxiliary port AUX1) of the rf processing circuit 20 is utilized to support signal transmission in any frequency band of N77/N78/N79, and signals in any frequency band of N77/N78/N79 are transmitted between the rf antenna 10 and the rf transceiver 30 through the first auxiliary port AUX 1. The signals in the N41 band are transmitted between the rf antenna 10 and the rf transceiver 30 directly through the first signal transceiving port without passing through the auxiliary port.
Alternatively, the first end of the second signal transmission path 22 may be directly connected to the first antenna connection port ANT1, or may be connected to the first antenna connection port ANT1 via the first signal transmission path 21. When the first signal transmission path 21 is turned on and the second signal transmission path 22 is turned off, a signal of a first preset frequency band may be transmitted, and when both the second signal transmission path 21 and the second signal transmission path 22 are turned on, a signal of a second preset frequency band may be transmitted. In the rf processing circuit 20, a filter, an rf switch, etc. may be further disposed at a later stage of the first signal transmission path 21, so that even when the second signal transmission path 21 and the second signal transmission path 22 are both turned on, the signal of the second predetermined frequency band is not output to the rf transceiver 30 through the first signal transceiving port and the rf transceiving terminal.
Referring to fig. 5, in an embodiment, the first signal transmission path 21 includes a first path selection switch 211, and the first path selection switch 211 is connected between the first antenna connection port ANT1 and the first signal transceiving port;
the second signal transmission path 22 includes a second path selection switch 221, and the second path selection switch 221 is connected between the first path selection switch 211 and the first auxiliary port AUX 1.
In this embodiment, the first path selecting switch 211 may be a DPDT switch (double pole double throw switch), the second path selecting switch 221 may be SP3T, and the first path selecting switch 211 and the second path selecting switch 221 may be implemented by using an N77-N79 rf front-end module, which may be a rf switch in a PAMID module. According to the signal transmission method and device, different paths are gated through the first path selection switch 211 and the second path selection switch 221, and transmission of signals of two different frequency bands is achieved.
Third embodiment
Referring to fig. 5, in an embodiment, the number of the first signal transceiving ports is two, the first signal transmission path 21 includes two signal transmission branches, first ends of the two signal transmission branches are both connected to the rf antenna 10 through an antenna connection end, and second ends of the two signal transmission branches are connected to the two first signal transceiving ports in a one-to-one correspondence manner.
In this embodiment, the two first signal transceiving ports are respectively connected to the radio frequency transceiver 30 through the radio frequency transceiving end, the two signal transmission branches may be implemented by using a DPDT switch (double pole double throw switch), the second path selecting switch 221 may be implemented by using an FP3T switch (four pole three throw switch), one P port of the DPDT switch is connected to the first antenna connection port ANT1, one T port of the DPDT switch is simultaneously connected to one first signal transceiving port and one P port of the FP3T, the other T port of the DPDT switch is connected to the other first signal transceiving port, and one T port of the FP3T is connected to the first auxiliary port AUX 1. Alternatively, the two signal transmission branches and the second signal transmission path 22 are respectively denoted as path 1, path 2 and path 3. Path 1, path 2 and path 3 may be PRX (responsible for transmission and reception of radio frequency signals) paths. Alternatively, path 1 is used to transmit N77 band signals, path 2 is used to transmit N79 band signals, and path 3 is used to transmit N41 band signals. It will be appreciated that the operating band of N77 covers the operating band of N78. When the rf processing circuit 20 can support the transmission and reception of the rf signal in the N77 frequency band, it can also support the transmission and reception of the rf signal in the N78 frequency band. That is, the path 1 can simultaneously realize the transceiving of signals of two working frequency bands N77 and N78.
In order to adapt to different network environments, different logic values may be written into the register of the rf processing circuit 20, and the processor may determine the current environment of the mobile terminal, receive or transmit a signal in the network environment, determine a communication frequency band of the received or transmitted signal according to the signal received or transmitted by the mobile terminal, and analyze frequency band information, thereby determining and controlling the on-state of the path 1, the path 2, and the path 3 of the rf processing circuit 20. Alternatively, if the processor determines that the radio frequency processing circuit 20 is currently in the N77 network environment, a logic value, which may be 0x01, is written into the register of the radio frequency processing circuit 20, at this time, the internal path of the radio frequency processing circuit 20 is switched from the first antenna connection port ANT1 to path 1, and the radio frequency antenna 10, after receiving the N77 frequency band signal, enters the N77 PRX path through path 1, and then enters the radio frequency transceiver 30. When the processor determines that the radio frequency processing circuit 20 is currently in the N79 network environment, a logic value, which may be 0x03, is written into the register of the radio frequency processing circuit 20, at this time, the internal path of the radio frequency processing circuit 20 is switched from the first antenna connection port ANT1 to path 2, and after receiving the N79 frequency band signal, the radio frequency antenna 10 enters the N79 PRX path through path 2 and then enters the radio frequency transceiver 30. When the processor determines that the radio frequency processing circuit 20 is currently in the N41 network environment, a logic value, which may be 0x05, is written into the register of the radio frequency processing circuit 20, and the internal path of the radio frequency processing circuit 20 is switched from the first antenna connection port ANT1 to path 3; after receiving the N41 frequency band signal, the rf antenna 10 enters the N41 PRX path through the path 3, and then enters the rf transceiver 30. The above-mentioned signal receiving and transmitting can be realized through the path 1, the path 2 and the path 3, that is, the path 1, the path 2 and the path 3 are paths for realizing signal receiving, and also can be paths for realizing signal transmitting, and the control logics of the signal TX (transmitting)/RX (receiving) are the same, and the path selection switch in the radio frequency processing circuit 20 is controlled by the processor, that is, the path selection switch can be switched to the corresponding path, thereby realizing the signal receiving/transmitting, and the control process of the signal transmitting can refer to the process of the signal receiving, which is not described herein again.
Optionally, a radio frequency front end unit corresponding to the frequency band is further disposed between the second end of each signal transmission branch and the corresponding first signal transceiving port. Optionally, when the two signal transmission branches are respectively used for transmitting signals in the N77 frequency band and the N79 frequency band, an N77 frequency band radio frequency front-end unit is further disposed between the second end of one signal transmission branch and the corresponding first signal transceiving port, and an N79 frequency band radio frequency front-end unit is further disposed between the second end of the other signal transmission branch and the corresponding first signal transceiving port. The N77 frequency band radio frequency front end unit and the N79 frequency band radio frequency front end unit can realize signal processing such as amplification, filtering and the like of signals to be received/sent.
Compared to using a frequency divider to divide the two frequency bands, the insertion loss in the N41 frequency band is: 1.4 dB. Insertion loss in N77-N78 frequency band: 1-1.3dB, insertion loss in the N79 frequency band: 0.8 dB. The application does not need a frequency divider, and when the N41 frequency band transmits signals through a first Auxiliary (AUX) port, the insertion loss of the N41 frequency band is 1 dB. The N41 transmit/receive index is improved by 0.4dB compared with the frequency divider. The N77-N79 frequency band does not need to pass through a distributor, so that the emission and receiving indexes of the N77-N78 frequency band are respectively improved by 1-1.3dB compared with a frequency divider, and the emission and receiving indexes of the N79 frequency band are improved by 0.8dB compared with the frequency divider. It can be understood that, the insertion loss of the frequency dividers of different models is different, and the performance improvement value changes along with the insertion loss value of the model, which is not limited herein.
Referring to fig. 4, in an embodiment, the number of the rf processing circuits 20 may be two, and each of the rf processing circuits 20 is serially disposed between one of the rf antennas 10 and the rf transceiver 30.
Optionally, one of the two rf processing circuits 20 is an L-PAMID module 23, and the other of the two rf processing circuits 20 is an LFEM module 24.
In this embodiment, the functions of receiving and sending signals of the rf processing circuit 20 are different according to different rf antennas 10 connected to the antenna connection end, when the rf antenna 10 is a main diversity rf antenna ANT13, the rf processing circuit 20 may receive and transmit signals of at least two different frequency bands, and when the rf antenna 10 is a diversity rf antenna ANT14, the rf processing circuit 20 may receive signals of at least two different frequency bands. For the signal receiving and transmitting process of the antenna unit composed of the main rf antenna ANT13 and the rf processing circuit 20, reference may be made to the above embodiments, which are not described herein again. In this embodiment, the rf antenna 10 is taken as a diversity rf antenna ANT14 and the rf processing circuit 20 forms another antenna unit as an example for description, and optionally, in this embodiment, the rf processing circuit 20 may be implemented by LFEM. The LFEM includes a first antenna connection port ANT1, a first signal transceiving port, a first auxiliary port AUX1, and two signal transmission paths for signal reception, which are respectively denoted as a first signal transmission path 21 and a second signal transmission path 22.
The first antenna connection port ANT1, the first signal transmission path 21 and the first signal transceiving port form a signal transmission path of a first predetermined frequency band. Optionally, when receiving a signal, the rf antenna 10 transmits the received signal to the first antenna connection port ANT1, and when the processor determines that the frequency band of the signal received by the rf antenna 10 matches a first preset frequency band of the first signal transmission path 21, the processor controls the first signal transmission path 21 to be turned on, and at this time, the signal of the first preset frequency band is transmitted to the rf transceiver 30 through the first antenna connection port ANT1, the first signal transmission path 21, and the first signal transceiving port. The first antenna connection port ANT1, the second signal transmission path 22 and the first auxiliary port AUX1 form a signal transmission path of a second predetermined frequency band. Optionally, when receiving a signal, the rf antenna 10 transmits the received signal to the first antenna connection port ANT1, and when the processor determines that the frequency band of the signal received by the rf antenna 10 matches a second preset frequency band of the second signal transmission path 22, the processor controls the second signal transmission path 22 to be turned on, and at this time, the signal in the second preset frequency band is transmitted to the rf transceiver 30 through the first antenna connection port ANT1, the second signal transmission path 22 and the first auxiliary port AUX 1. Optionally, the specific structure of the signal transmission path may refer to the above, and is not described herein again.
Fourth embodiment
The application also provides a mobile terminal, which comprises the mobile terminal.
The detailed structure of the rf front-end module can refer to the above embodiments, and is not described herein again; it can be understood that, since the mobile terminal in the embodiment of the present application includes the radio frequency front end module in any of the embodiments, the embodiment of the present application includes all technical solutions of all embodiments of the radio frequency front end module, and the achieved technical effects are also completely the same, and are not described herein again.
Optionally, the mobile terminal includes a radio frequency antenna, a radio frequency transceiver, and a radio frequency front end module, where the radio frequency antenna is connected to an antenna connection end of the radio frequency front end module, and the radio frequency transceiver is connected to a radio frequency transceiver end of the radio frequency front end module.
Referring to fig. 4, in an embodiment, the number of the rf antennas 10 is two, and each of the rf processing circuits 20 is serially disposed between one of the rf antennas 10 and the rf transceiver 30.
Optionally, one of the two rf antennas 10 is a main rf antenna ANT13, and the other of the two rf antennas 10 is a diversity rf antenna ANT 14. One of the two RF processing circuits 20 is an L-PAMID module 23, and the other of the two RF processing circuits 20 is an LFEM module 24.
In this embodiment, when the rf antenna 10 is the main diversity rf antenna ANT13, the rf processing circuit 20 may receive and transmit signals of at least two different frequency bands, and when the rf antenna 10 is the diversity rf antenna ANT14, the rf processing circuit 20 may receive signals of at least two different frequency bands. Optionally, the signal receiving and transmitting processes of a group of antenna units formed by the main rf antenna ANT13 and the rf processing circuit 20 may refer to the above embodiments, and are not described herein again. In this embodiment, the rf antenna 10 is taken as a diversity rf antenna ANT14 and the rf processing circuit 20 forms another antenna unit as an example for description, and optionally, in this embodiment, the rf processing circuit 20 may be implemented by LFEM. The LFEM includes a first antenna connection port ANT1, a first signal transceiving port, a first auxiliary port AUX1, and two signal transmission paths for signal reception, which are respectively denoted as a first signal transmission path 21 and a second signal transmission path 22.
Referring to fig. 5, in an embodiment, the rf antenna may further include an N41 band MIMO main rf antenna (N41 band PRX MIMO antenna 11) for implementing receiving, transmitting and receiving of signals in N41 band, and a SAW duplexer/filter (shown as N41 SAW11) connected to the N41 band MIMO main rf antenna ANT 11; an N41 frequency band MIMO diversity rf antenna ANT12 for implementing the reception and transmission of signals of the N41 frequency band, and a SAW duplexer/filter (shown as N41 SAW12) connected to the N41 frequency band MIMO diversity rf antenna ANT 12.
An LFEM1 connected to an N77-N79 band MIMO main set rf antenna (shown as N77-N79 band PRX MIMO ont 15) ANT15 for implementing signal receiving, transmitting and transmitting in N77-N79 band, and an N77-N79 band MIMO main set rf antenna; an N77-N79 band MIMO diversity rf antenna (shown as N77-N79 band PRX MIMO ANT16) for receiving and transmitting signals of N77-N79 band, and an LFEM2 connected to the N77-N79 band MIMO diversity rf antenna ANT 16.
Optionally, the radio frequency antenna may also be provided with other antennas, and the radio frequency antenna may be a directional antenna or a non-directional antenna. Each antenna may be formed using any suitable type of antenna. For example, each antenna may be implemented using one or more combinations of an array antenna structure, a loop antenna structure, a patch antenna structure, a slot antenna structure, a helical antenna structure, a strip antenna, a monopole antenna, and a dipole antenna. The rf antenna includes, but is not limited to, a 5G antenna, a 4G antenna, a WiFi antenna, a bluetooth antenna, etc. to correspondingly receive and transmit rf signals of corresponding frequency bands.
Fifth embodiment
The application also provides a signal processing method of the radio frequency front end module, wherein the radio frequency front end module comprises an antenna connecting end, a radio frequency processing circuit and a radio frequency transceiving end which are sequentially connected, and the radio frequency processing circuit is provided with a first signal transmission channel and a second signal transmission channel;
referring to fig. 6, the signal processing method of the rf front end module includes the following steps:
s100, detecting a signal frequency band received or to be transmitted by the radio frequency front end module;
in this embodiment, the mobile terminal can support detection of multiple types of network information, and the mobile terminal can acquire the network environment around the mobile terminal, for example, base stations existing around the mobile terminal and information such as wireless parameters of the base stations perceived by the mobile terminal. Optionally, the radio parameter information includes signal frequency bands supported by the base station. The gating controller can be integrated in the radio frequency transceiver or can be realized by adopting a processor of the mobile terminal, and the gating controller can judge the current environment of the mobile terminal, receive or transmit signals in the network environment, determine the communication frequency band of the received or transmitted signals according to the received or transmitted signals of the mobile terminal, and analyze frequency band information, thereby determining and controlling a corresponding signal transmission channel in the radio frequency processing circuit and realizing the transmission of the signals.
Step S200, controlling one of the at least two signal transmission channels matched with the signal frequency band to be conducted so as to communicate the antenna connection end and the radio frequency transceiving end.
Optionally, the number of the signal transmission channels may be two, or may be more than two, in each embodiment of the present application, two signal transmission channels are described as an example, where the two signal transmission channels are respectively a first signal transmission channel and a second signal transmission channel, and according to the signal frequency band, the first signal transmission channel of the radio frequency processing circuit is controlled to communicate the antenna connection end and the radio frequency transceiver end; or, controlling a second signal transmission channel of the radio frequency processing circuit to communicate the antenna connection end and the radio frequency transceiving end.
In this embodiment, after the antenna connection end receives radio frequency signals of different frequency bands, the radio frequency processing circuit controls the conduction of corresponding transmission paths in the two signal transmission paths according to the frequency bands corresponding to the radio frequency signals, so as to communicate the antenna connection end and the radio frequency transceiving end, so that the corresponding frequency bands can be output on the transmission paths matched with the corresponding frequency bands, and the radio frequency signals of different frequency bands received by the same radio frequency antenna connected to the antenna connection end can be transmitted to the radio frequency transceiver through the two signal transmission paths and the radio frequency transceiving end. Based on this, this gating controller can control the radio frequency signal of two kinds of different frequencies and share a radio frequency antenna transmission or receipt to can save half the antenna of quantity, improve the antenna utilization ratio. Similarly, in the process of transmitting the radio frequency signal, two different radio frequency signals generated by the radio frequency transceiver are processed by the radio frequency processing circuit, and then can be transmitted to the radio frequency antenna through the signal transmission channel antenna connecting end corresponding to the frequency band of the radio frequency signal in the two signal transmission channels, and then transmitted through the radio frequency antenna.
Compared with the method that the frequency divider is arranged between the radio frequency processing circuit and the radio frequency antenna and used for carrying out frequency division processing on the radio frequency signals with two different frequencies, the method and the device for processing the radio frequency signals with the two different frequencies receive the radio frequency signals with at least two different frequency bands based on the radio frequency processing circuit and respectively transmit the radio frequency signals with the two different frequencies through two internal signal transmission channels. The application can reduce the use of the frequency divider, thereby simplifying the process of processing signals by the frequency divider, reducing the insertion loss caused by the frequency divider and being beneficial to improving the performance of the radio frequency front-end module. Meanwhile, the PCB layout of the mobile terminal electric control board can be simplified, the space distance between devices of the radio frequency front-end module is increased, and the signal interference between the devices can be reduced.
Referring to fig. 7, in an embodiment, the two signal transmission channels are respectively a first signal transmission channel and a second signal transmission channel, and the step of controlling, according to the received signal frequency band, one of the at least two signal transmission channels, which is matched with the received signal frequency band, to be conducted so as to communicate the antenna connection terminal and the radio frequency transceiving terminal specifically includes:
step S210, when the detected frequency band of the signal received by the radio frequency front end module or to be transmitted is a first preset frequency band, controlling the first signal transmission path to communicate the radio frequency transceiver end and the antenna connection end; and the number of the first and second groups,
step S220, when the detected frequency band of the signal received by the rf front-end module or to be transmitted is a second preset frequency band, controlling the second signal transmission channel to communicate the rf transceiver and the antenna connection end.
In this embodiment, the first preset frequency band is any one or a combination of N77, N78, and N79; the second preset frequency band is N41. Optionally, the frequency range corresponding to the N41 frequency band is 2496MHz-2690MHz, the frequency range corresponding to the N77 frequency band is 3300MHz-4200MHz, the frequency range corresponding to the N78 frequency band is 3300MHz-3800MHz, and the frequency range corresponding to the N79 frequency band is 4400MHz-5000 MHz.
In this embodiment, a register is further integrated inside the rf processing circuit, so as to adapt to different network environments, different logic values can be written into the register of the rf processing circuit, and signals can be switched from the antenna connection port to the first signal transmission path, that is, the N77-N79 frequency band path, or the second signal transmission path, that is, the N41 path, respectively. Alternatively, different logic values may be stored in a memory in the mobile terminal, for example, in the NV RAM, and when signals of different network frequency bands occur, the processor may automatically invoke these parameters, so as to control the conduction of the first signal transmission path or the second signal transmission path corresponding to the signal frequency band according to the received/to-be-transmitted signal frequency band, so as to implement the transmission of the corresponding frequency signal. Optionally, when the frequency band of the received/to-be-transmitted signal is a first preset frequency band, the signal in the first preset frequency band may be in a conducting state in the first signal transmission path, the signal received from the antenna connection end may be output to the radio frequency transceiver end through the first signal transmission path, or the to-be-transmitted signal output from the radio frequency transceiver end may be output to the antenna connection end through the first signal transmission path. When the frequency band of the received/to-be-transmitted signal is the second preset frequency band, the signal of the second preset frequency band can be output to the radio frequency transceiving end through the second signal transmission channel when the second signal transmission channel is in the conducting state, or the to-be-transmitted signal output from the radio frequency transceiving end can be output to the antenna connection end through the second signal transmission channel. Therefore, the embodiment of the application can complete the receiving or transmitting of two signals with different frequency bands on the same antenna connecting end through the function switching of the radio frequency processing circuit.
Referring to fig. 8, in an embodiment, the first signal transmission path includes a first signal transmission branch and a second signal transmission branch;
when the detected signal frequency band received/to-be-transmitted by the radio frequency front end module is a first preset frequency band, the step of controlling the first signal transmission channel to communicate the radio frequency transceiving end with the antenna connecting end specifically comprises the following steps:
step S2111, when the detected frequency band of the signal received or to be transmitted by the radio frequency front end module is a first preset frequency band and is a first type of network environment, controlling a first signal transmission branch corresponding to the first type of network environment to communicate the radio frequency receiving and transmitting end with the antenna connecting end;
step S2112, when the detected frequency band of the signal received by the radio frequency front end module or to be transmitted is a first preset frequency band and is in a second type of network environment, controlling a second signal transmission branch corresponding to the second type of network environment to communicate the radio frequency transceiving end with the antenna connection end.
In this embodiment, the two signal transmission branches and the second signal transmission path are respectively denoted as path 1, path 2, and path 3. Path 1, path 2 and path 3 may be PRX (responsible for transmission and reception of radio frequency signals) paths. Alternatively, path 1 is used to transmit N77 band signals, path 2 is used to transmit N79 band signals, and path 3 is used to transmit N41 band signals. It will be appreciated that the operating band of N77 covers the operating band of N78. When the radio frequency processing circuit can support the transceiving of the radio frequency signal of the N77 frequency band, the transceiving of the radio frequency signal of the N78 frequency band can be correspondingly supported. That is, the path 1 can simultaneously realize the transceiving of signals of two working frequency bands N77 and N78.
In order to adapt to different network environments, different logic values can be written into the register of the radio frequency processing circuit, and the processor can judge the current environment of the mobile terminal, receive or transmit signals in the network environment, determine the communication frequency band of the received or transmitted signals according to the received or transmitted signals of the mobile terminal, and analyze frequency band information, thereby determining and controlling the conduction of the channel 1, the channel 2 and the channel 3 of the radio frequency processing circuit. Optionally, when it is determined that the current environment is in the N77 network environment, a logic value, optionally 0x01, is written into a register of the rf processing circuit, at this time, an internal path of the rf processing circuit is switched from the first antenna connection port to path 1, and after receiving the N77 band signal, the antenna connection end enters the N77 PRX path through path 1, and then enters the rf transceiver through the rf transceiver end. When the current environment of the N79 network is determined, a logic value is written into a register of the radio frequency processing circuit, which can be selected as 0x03, at this time, the internal path of the radio frequency processing circuit is switched to a path 2 from a first antenna connection port, and after the antenna connection end receives the N79 frequency band signal, the signal enters an N79 PRX path through the path 2 and then enters the radio frequency transceiver through the radio frequency transceiver end. When the current environment of the N41 network is determined, writing a logic value, which can be 0x05, into a register of the radio frequency processing circuit, and switching the internal path of the radio frequency processing circuit from the first antenna connecting port to path 3; after receiving the signal of the N41 frequency band, the antenna connecting end enters an N41 PRX path through a path 3 and then enters a radio frequency transceiver through a radio frequency transceiving end. The above-mentioned signal receiving and transmitting can be realized through the path 1, the path 2 and the path 3, that is, the path 1, the path 2 and the path 3 are paths for realizing signal receiving, and also can be paths for realizing signal transmitting, and the control logics of the signal TX (transmitting)/RX (receiving) are the same, and by controlling the path selection switch in the radio frequency processing circuit, the corresponding path can be switched to, thereby realizing the signal receiving/transmitting, and the control process of the signal transmitting can refer to the process of the signal receiving, and is not described herein again.
The present application further proposes a mobile terminal, the mobile terminal including: a memory, a processor, optionally, a signal processing program stored on the memory, the signal processing program implementing the steps of the signal processing method as described above when executed by the processor. Optionally, the detailed steps of the signal processing method have been described in detail in the above embodiments, and are not described herein again.
The present application further provides a readable storage medium, wherein the readable storage medium stores a computer program, and the computer program, when executed by a processor, implements the steps of the signal processing method of the rf front-end module as described above.
In the embodiments of the intelligent terminal and the computer-readable storage medium provided in the present application, all technical features of any one of the embodiments of the signal processing method of the radio frequency front-end module may be included, and the expanding and explaining contents of the specification are basically the same as those of the embodiments of the method, and are not described herein again.
Embodiments of the present application also provide a computer program product, which includes computer program code, when the computer program code runs on a computer, the computer is caused to execute the method in the above various possible embodiments.
Embodiments of the present application further provide a chip, which includes a memory and a processor, where the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that a device in which the chip is installed executes the method in the above various possible embodiments.
It is to be understood that the foregoing scenarios are only examples, and do not constitute a limitation on application scenarios of the technical solutions provided in the embodiments of the present application, and the technical solutions of the present application may also be applied to other scenarios. For example, as can be known by those skilled in the art, with the evolution of system architecture and the emergence of new service scenarios, the technical solution provided in the embodiments of the present application is also applicable to similar technical problems.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits 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 in the embodiment of the application can be merged, divided and deleted according to actual needs.
In the present application, the same or similar term concepts, technical solutions and/or application scenario descriptions will be generally described only in detail at the first occurrence, and when the description is repeated later, the detailed description will not be repeated in general for brevity, and when understanding the technical solutions and the like of the present application, reference may be made to the related detailed description before the description for the same or similar term concepts, technical solutions and/or application scenario descriptions and the like which are not described in detail later.
In the present application, each embodiment is described with emphasis, and reference may be made to the description of other embodiments for parts that are not described or illustrated in any embodiment.
The technical features of the technical solution of the present application may be arbitrarily combined, and for brevity of description, all possible combinations of the technical features in the embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, the scope of the present application should be considered as being described in the present application.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, a controlled terminal, or a network device) to execute the method of each embodiment of the present application.
In the above embodiments, the implementation may be wholly or partially realized 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. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, 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 wire (e.g., coaxial cable, fiber optic, digital subscriber line) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, memory Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are included in the scope of the present application.

Claims (13)

1. A radio frequency front end module is characterized by comprising an antenna connecting end, a radio frequency transceiving end and a radio frequency processing circuit, wherein:
the radio frequency processing circuit is connected with the antenna connecting end and the radio frequency receiving and transmitting end, and comprises at least two signal transmission channels which are communicated with the antenna connecting end and the radio frequency receiving and transmitting end when being conducted so as to output a signal of a signal frequency band.
2. The rf front-end module of claim 1, further comprising:
and the gating controller is connected with the radio frequency processing circuit and used for detecting the signal frequency band received by the radio frequency front-end module and controlling one of the at least two signal transmission channels matched with the received signal frequency band to be conducted according to the received signal frequency band so as to communicate the antenna connecting end with the radio frequency transceiving end.
3. The rf front-end module of claim 2, wherein the gating controller is further configured to detect a frequency band of a signal to be transmitted by the rf front-end module, and control one of the at least two signal transmission channels, which is matched with the frequency band of the received signal, to be conducted according to the frequency band of the signal to be transmitted, so as to communicate the antenna connection terminal and the rf transceiver terminal.
4. The RF front-end module of any one of claims 1 to 3, wherein the signal transmission channel comprises a first signal transmission path and a second signal transmission path, the RF processing circuit further comprises a first auxiliary port, a first antenna connection port, and at least one first signal transceiving port; wherein, at least one of the following is included:
the first antenna connection port is used for connecting a first end of the first signal transmission path and a first end of the second signal transmission path;
the first signal transceiving port is used for connecting a second end of the first signal transmission channel with the radio frequency transceiving end;
the first auxiliary port is used for connecting the second end of the second signal transmission path with the radio frequency transceiving end.
5. The radio frequency front end module of claim 4, wherein the first signal transmission path includes a first path selection switch connected between the first antenna connection port and the first signal transceiving port; and/or the presence of a gas in the gas,
the second signal transmission path includes a second path selection switch connected between the first path selection switch and the first auxiliary port.
6. The RF front-end module according to claim 4, wherein the first signal transceiving ports comprise two, the first signal transmission path comprises two signal transmission branches, first ends of the two signal transmission branches are both connected to the antenna connection end, and second ends of the two signal transmission branches are correspondingly connected to the two first signal transceiving ports.
7. The RF front-end module of any one of claims 1 to 3, wherein the RF processing circuits include two, and each RF processing circuit is serially connected between one of the antenna connection terminals and the RF transceiver terminal.
8. A mobile terminal, characterized in that the mobile terminal comprises a radio frequency antenna, a radio frequency transceiver and a radio frequency front-end module according to any one of claims 1 to 7, the radio frequency antenna is connected with an antenna connection terminal of the radio frequency front-end module, and the radio frequency transceiver is connected with a radio frequency transceiving terminal of the radio frequency front-end module.
9. A signal processing method is characterized in that the method is applied to a radio frequency front end module, the radio frequency front end module comprises an antenna connecting end, a radio frequency processing circuit and a radio frequency transceiving end which are sequentially connected, and the radio frequency processing circuit is integrated with at least two signal transmission channels; the method comprises the following steps:
detecting a signal frequency band received or to be transmitted by the radio frequency front end module;
and controlling one of the at least two signal transmission channels matched with the signal frequency band to be conducted so as to communicate the antenna connecting end and the radio frequency transceiving end.
10. The signal processing method according to claim 9, wherein the signal transmission channel includes a first signal transmission path and a second signal transmission path;
the step of controlling the conduction of one of the at least two signal transmission channels matched with the signal frequency band to communicate the antenna connection end and the radio frequency transceiving end includes:
when the signal frequency band is a first preset frequency band, controlling the first signal transmission channel to communicate the radio frequency transceiving end and the antenna connecting end; and/or the presence of a gas in the gas,
and when the signal frequency band is a second preset frequency band, controlling the second signal transmission channel to communicate the radio frequency transceiving end and the antenna connecting end.
11. The signal processing method of claim 10, wherein the first signal transmission path includes a first signal transmission branch and a second signal transmission branch;
the step of controlling the first signal transmission path to communicate the radio frequency transceiving end with the antenna connection end includes:
when the signal frequency band is the first preset frequency band and is a first type of network environment, controlling a first signal transmission branch corresponding to the first type of network environment to communicate the radio frequency transceiving end and the antenna connecting end; and/or the presence of a gas in the gas,
and when the signal frequency band is the first preset frequency band and is in a second type of network environment, controlling a second signal transmission branch corresponding to the second type of network environment to communicate the radio frequency transceiving end and the antenna connecting end.
12. A mobile terminal, characterized in that the mobile terminal comprises: memory, a processor, optionally having stored thereon a signal processing program, which when executed by the processor implements the steps of the signal processing method according to any of claims 9 to 11.
13. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, realizes the steps of the signal processing method according to any one of claims 9 to 11.
CN202111657480.5A 2021-12-30 2021-12-30 Radio frequency front-end module, signal processing method, mobile terminal and storage medium Pending CN114301489A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023216785A1 (en) * 2022-05-10 2023-11-16 华为技术有限公司 Radio frequency front-end module, control method therefor, control circuit, and communication device
CN117251404A (en) * 2023-11-17 2023-12-19 北京小米移动软件有限公司 Control method and device, electronic equipment and storage medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023216785A1 (en) * 2022-05-10 2023-11-16 华为技术有限公司 Radio frequency front-end module, control method therefor, control circuit, and communication device
CN117251404A (en) * 2023-11-17 2023-12-19 北京小米移动软件有限公司 Control method and device, electronic equipment and storage medium
CN117251404B (en) * 2023-11-17 2024-01-30 北京小米移动软件有限公司 Control method and device, electronic equipment and storage medium

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