Radio frequency system and electronic device

Abstract

This application provides a radio frequency (RF) system and electronic device. The RF system includes a first RF transceiver module, a second RF transceiver module, a first switching unit, a first front-end circuit, a second switching unit, a first filter, a second filter, a first antenna radiator, and a second antenna radiator. The first RF transceiver module is used to transmit and receive a first network signal in a first frequency band; the second RF transceiver module is used to transmit and receive a second network signal in a second frequency band; the two selection terminals of the first switching unit are electrically connected to the first RF transceiver module and the second RF transceiver module, respectively; the first front-end circuit is electrically connected between the first switching unit and the first filter; the first front-end circuit is electrically connected between the first switching unit and the second filter; the first antenna radiator is electrically connected to the other end of the first filter; the second antenna radiator is electrically connected to the other end of the second filter. This application simplifies the architecture and reduces the size of the RF system while supporting multiple network signals.

Description

Technical Field

[0001] This application relates to the field of communication technology, specifically to a radio frequency system and electronic device. Background Technology

[0002] With the development of communication functions in electronic devices, these devices can support a wide range of network signals with different communication standards. However, the radio frequency (RF) systems within these devices require more transceiver channels to support these network signals. Given the limited space within electronic devices, especially on the motherboard, simplifying the RF system architecture and reducing its size while supporting multiple network signals has become a critical technical challenge. Summary of the Invention

[0003] This application provides an RF system and an electronic device having the RF system that simplify the architecture of the RF system while supporting multiple network signals and reduce the size of the RF system.

[0004] In a first aspect, an embodiment of this application provides a radio frequency system, comprising:

[0005] A first radio frequency transceiver module, wherein the first radio frequency transceiver module is used to transmit and receive a first network signal in a first frequency band;

[0006] The second radio frequency transceiver module is used to transmit and receive second network signals in the second frequency band;

[0007] The first switching unit has two selection terminals that are electrically connected to the first radio frequency transceiver module and the second radio frequency transceiver module, respectively.

[0008] A first front-end circuit, one end of which is electrically connected to the fixed end of the first switching unit;

[0009] The second switching unit has one end electrically connected to the other end of the first front-end circuit;

[0010] A first filter, one end of which is electrically connected to the first selection terminal of the second switching unit, is used to allow the first network signal of the first frequency band to pass through;

[0011] The second filter, one end of which is electrically connected to the second selection terminal of the second switching unit, is used to allow the second network signal of the second frequency band to pass through;

[0012] The first antenna radiator is electrically connected to the other end of the first filter and is used to transmit and receive the first network signal in the first frequency band.

[0013] The second antenna radiator is electrically connected to the other end of the second filter and is used to transmit and receive the second network signal in the second frequency band.

[0014] This application provides a radio frequency (RF) system, comprising a first RF transceiver module, a second RF transceiver module, a first switching unit, a first front-end circuit, a second switching unit, a first filter, a second filter, a first antenna radiator, and a second antenna radiator. The first RF transceiver module is used to transmit and receive a first network signal in a first frequency band; the second RF transceiver module is used to transmit and receive a second network signal in a second frequency band; two selection terminals of the first switching unit are electrically connected to the first RF transceiver module and the second RF transceiver module, respectively; one end of the first front-end circuit is electrically connected to a fixed terminal of the first switching unit; one end of the second switching unit is electrically connected to the other end of the first front-end circuit; one end of the first filter is electrically connected to the first selection terminal of the second switching unit, and the first filter is used to allow the first network signal in the first frequency band to pass through; one end of the second filter is electrically connected to the second selection terminal of the second switching unit. At the selection end, the second filter is used to allow the second network signal of the second frequency band to pass through; the first antenna radiator is electrically connected to the other end of the first filter; the second antenna radiator is electrically connected to the other end of the second filter; when the first switching unit turns on the first RF transceiver module and the first front-end circuit, the first front-end circuit amplifies the first network signal of the first frequency band and sends it to the first antenna radiator, so that the first antenna radiator is used to transmit and receive the first network signal of the first frequency band; when the second switching unit turns on the second RF transceiver module and the first front-end circuit, the first front-end circuit amplifies the second network signal of the second frequency band and sends it to the second antenna radiator, so that the second antenna radiator is used to transmit and receive the second network signal of the second frequency band. In this way, the RF system can reuse the first front-end circuit while supporting multiple network signals, simplifying the architecture of the RF system and reducing the size occupied by the RF system.

[0015] Secondly, an electronic device is provided in the embodiments of this application, the electronic device including the radio frequency system as described in the first aspect. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below.

[0017] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0018] Figure 2 This is an exploded structural diagram of an electronic device provided in an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 1 ;

[0020] Figure 4 This is a frequency response curve of a first power amplifier provided in an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 2 ;

[0022] Figure 6 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 3 ;

[0023] Figure 7 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 4 ;

[0024] Figure 8 This is a frequency response curve of a first power amplifier provided in an embodiment of this application;

[0025] Figure 9 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 5 ;

[0026] Figure 10 This is the frequency response curve of a second power amplifier provided in an embodiment of this application;

[0027] Figure 11 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 6 ;

[0028] Figure 12 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 7 ;

[0029] Figure 13 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 8 ;

[0030] Figure 14 This is a schematic diagram of the frame of the first combiner multiplexing the first sub-radiator provided in the embodiments of this application;

[0031] Figure 15 This is a schematic diagram of the frame of the second combiner multiplexing the second sub-radiator provided in the embodiments of this application;

[0032] Figure 16 This is a schematic diagram of the framework of the third combiner multiplexing third sub-radiator provided in the embodiments of this application;

[0033] Figure 17This is a schematic diagram of the frame of the fourth combiner multiplexing fourth sub-radiator provided in the embodiments of this application;

[0034] Figure 18 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 9 ;

[0035] Figure 19 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 10 ;

[0036] Figure 20 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 10 one;

[0037] Figure 21 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 10 two;

[0038] Figure 22 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 10 three;

[0039] Figure 23 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 10 Four;

[0040] Figure 24 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 10 five;

[0041] Figure 25 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 10 six;

[0042] Figure 26 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 10 seven;

[0043] Figure 27 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 10 eight;

[0044] Figure 28 This is a schematic diagram of the framework of a radio frequency system provided in an embodiment of this application. Figure 10 Nine.

[0045] Explanation of icon numbers:

[0046] Electronic device 1000; Radio frequency system 100; Display screen 200; Mid-frame 300; Back cover 400; Mid-plate 310; Bezel 320; First radio frequency transceiver module 110; Second radio frequency transceiver module 120; First switching unit 111; First front-end circuit 112; Second switching unit 113; First filter 114; Second filter 115; First antenna radiator 116; Second antenna radiator 117; First port 101; Second port 102; First power amplifier PA1; First low-loss... Power amplifier LNA1; First radiator 1167; First antenna switch 118; Third port 103; Third filter 1180; Third antenna radiator 119; Fourth port 104; Fifth port 105; Third switching unit 121; Second front-end circuit 122; Fourth switching unit 123; Fourth filter 124; Fifth filter 125; Fourth antenna radiator 126; Fifth antenna radiator 127; Second power amplifier PA2; Sixth port 106; Sixth filter 128; Sixth... Antenna radiator 129; Second radiator 1267; Second antenna switch 182; First combiner 192; First sub-radiator 130; Second combiner 131; Second sub-radiator 132; Third combiner 133; Third sub-radiator 134; Fourth combiner 135; Fourth sub-radiator 136; Third front-end circuit 140; Seventh antenna radiator 141; Seventh port 107; Third power amplifier PA3; Third frequency selection switch 142; Third front-end filter 143; Third front-end switch 144; Antenna switch 1441; Switching switch 1442; Fourth front-end circuit 150; Eighth antenna radiator 151; Fourth power amplifier PA5; Fourth frequency selection switch 152; Fourth front-end filter 153; Fourth front-end switch 154; Fifth front-end circuit 160; Ninth antenna radiator 161; Fifth power amplifier PA6; Fifth frequency selection switch 162; Fifth front-end filter 163; Fifth front-end switch 164; Sixth front-end circuit 170; Tenth antenna radiator 171. Detailed Implementation

[0047] The technical solution of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the embodiments described in this application are only a part of the embodiments, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without creative effort are within the protection scope of this application.

[0048] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0049] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a particular order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, an assembly or device comprising one or more components is not limited to the one or more components listed, but may optionally also include one or more components not listed but inherent to the exemplified product, or one or more components that it should have based on the described function.

[0050] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of an electronic device 1000 provided in an embodiment of this application. The electronic device 1000 includes, but is not limited to, devices with communication functions such as mobile phones, tablets, laptops, computers, wearable devices, drones, robots, and digital cameras. This embodiment uses a mobile phone as an example for illustration; other electronic devices can refer to this embodiment.

[0051] Please see Figure 2 , Figure 2 This is a partially exploded view of the electronic device 1000 provided in this application embodiment. Taking a mobile phone as an example, the working environment of the radio frequency system 100 is illustrated. The electronic device 1000 includes a display screen 200, a mid-frame 300, and a back cover 400 arranged sequentially along its thickness direction. The mid-frame 300 includes a mid-plate 310 and a frame 320 surrounding the mid-plate 310. The frame 320 is a conductive frame, such as a metal frame. Receiving spaces are formed between the display screen 200 and the mid-plate 310, and between the mid-plate 310 and the back cover 400, to accommodate components such as the motherboard 600, camera module, receiver module, battery 700, sub-board 800, and various sensors. One side of the frame 320 along the thickness direction surrounds the edge of the display screen 200, and the other side of the frame 320 along the thickness direction surrounds the edge of the back cover 400, forming the complete external structure of the electronic device 1000. In this embodiment, the frame 320 and the middle plate 310 are an integral structure, while the frame 320 and the back cover 400 are separate structures. The above describes the working environment of the radio frequency system 100 using a mobile phone as an example, but the radio frequency system 100 of this application is not limited to the above working environment.

[0052] The structure of the radio frequency system 100 is illustrated below with reference to the accompanying drawings.

[0053] Please see Figure 3 The radio frequency system 100 includes a first radio frequency transceiver module 110, a second radio frequency transceiver module 120, a first switching unit 111, a first front-end circuit 112, a second switching unit 113, a first filter 114, a second filter 115, a first antenna radiator 116, and a second antenna radiator 117.

[0054] Optionally, the first radio frequency transceiver module 110 is a radio frequency transceiver.

[0055] The first radio frequency transceiver module 110 includes a transmitter and a receiver. The transmitter is used to shift the baseband modulated signal to the radio frequency through up-conversion, amplification, filtering and other processing, and then transmit it through the antenna radiator. The receiver is used to receive the weak radio frequency signal in space through the antenna, and then obtain the baseband signal through filtering, amplification, down-conversion and other processing, and finally send it to the demodulation module for demodulation.

[0056] Please see Figure 3 The first radio frequency transceiver module 110 is used to transmit and receive a first network signal in a first frequency band. Specifically, the signal transmission and reception port of the first radio frequency transceiver module 110 includes a first port 101.

[0057] The signals transmitted and received by the first port 101 include the first network signal of the first frequency band.

[0058] The first network signal includes, but is not limited to, a cellular mobile network signal. Optionally, the first network signal includes, but is not limited to, 2G, 3G, 4G, 5G, or 6G signals.

[0059] The second network signal includes, but is not limited to, a short-range network signal. Optionally, the second network signal includes, but is not limited to, a Wi-Fi signal, a Bluetooth signal, an NFC signal, or a UWB signal.

[0060] The first frequency band includes, but is not limited to, at least one of the LB band, MB band, HB band, and UHB band.

[0061] When the second network signal is a Wi-Fi signal, the second frequency band includes, but is not limited to, the Wi-Fi 2.4G frequency band, the Wi-Fi 5G frequency band, or the Wi-Fi 6G frequency band.

[0062] Please see Figure 3The second radio frequency transceiver module 120 is used to transmit and receive second network signals in the second frequency band. Specifically, the signal transceiver port of the second radio frequency transceiver module 120 includes a second port 102. The signals transmitted and received by the second port 102 include second network signals in the second frequency band.

[0063] The two selection terminals of the first switching unit 111 are electrically connected to the first RF transceiver module 110 and the second RF transceiver module 120, respectively. Specifically, the two selection terminals of the first switching unit 111 are electrically connected to the first port 101 and the second port 102, respectively.

[0064] One end of the first front-end circuit 112 is electrically connected to the fixed end of the first switching unit 111.

[0065] Specifically, the first front-end circuit 112 is also referred to as the radio frequency front-end circuit connected between the radio frequency transceiver module and the antenna radiator. The first front-end circuit 112 includes at least one transmit channel and at least one receive channel.

[0066] For a set of transmit and receive channels, the transmit channel of the first front-end circuit 112 includes a first power amplifier PA1 and a first filter 114 / first duplexer. Of course, the first filter 114 / first duplexer can also be located outside the transmit channel of the first front-end circuit 112. The receive channel of the first front-end circuit 112 includes a first low-loss amplifier LNA1; the first front-end circuit 112 also includes transceiver switching devices. One end of the transceiver switching is electrically connected to the first antenna radiator 116, and the other end of the transceiver switching can be selectively grounded to both the transmit and receive channels of the first front-end circuit 112.

[0067] The first power amplifier PA1 amplifies the signal in the transmit channel of the first front-end circuit 112. The first filter 114 filters the radio frequency signals of the transmit and receive channels of the first front-end circuit 112 under TDD mode. The first low-loss amplifier LNA1 amplifies the signal in the receive channel of the first front-end circuit 112. The first duplexer switches the duplex function of the first front-end circuit 112 under FDD mode and filters the radio frequency signals of the receive / transmit channels. The first transmit / receive switch is used to switch between the receive channel and the transmit channel of the first front-end circuit 112.

[0068] Optionally, the first power amplifier PA1 can amplify power across multiple frequency bands. For example, the first power amplifier PA1 is an HB power amplifier, capable of amplifying power in frequency bands B7, N40, N41, B40, B38, and B41. For TDD systems, each frequency band is configured with a different first filter 114. For FDD systems, each frequency band is configured with a different first duplexer. For example, the operating frequency bands of the first power amplifier PA1 include four bands: B7, B40, N41, and B38. A frequency selection switch is connected after the first power amplifier PA1. The frequency selection switch has four selection terminals, which are electrically connected to the duplexer of B7, the filter of B40, the filter of N41, and the filter of B38, respectively. The duplexer of B7, the filter of B40, the filter of N41, and the filter of B38 are electrically connected to the first antenna radiator 116 via the first antenna switch, so that the radio frequency system 100 can support the B7 band, or the B40 band, or the N41 band, or the B38 band.

[0069] In other embodiments, when there are multiple first power amplifiers PA1 in the first front-end circuit 112, the multiple first power amplifiers PA1 are respectively HB power amplifier, MB power amplifier, LB power amplifier, UHB power amplifier, etc. Among them, the transmission path where the MB power amplifier, or LB power amplifier, or UHB power amplifier is located can refer to the relevant content of the transmission path where the HB power amplifier is located mentioned above.

[0070] One end of the second switching unit 113 is electrically connected to the other end of the first front-end circuit 112. The two selection terminals of the second switching unit 113 are respectively connected to the first filter 114 and the second filter 115.

[0071] One end of the first filter 114 is electrically connected to the first selection terminal of the second switching unit 113. The first filter 114 is used to allow the first network signal of the first frequency band to pass through. The first filter 114 is a bandpass filter. The frequency band that the first filter 114 allows to pass through includes the first frequency band.

[0072] For example, the first frequency band is the UHB band. The first filter 114 is used to allow cellular mobile signals in the UHB band to pass through.

[0073] One end of the second filter 115 is electrically connected to the second selection terminal of the second switching unit 113. The second filter 115 is used to allow the second network signal of the second frequency band to pass through. The second filter 115 is a bandpass filter. The frequency band that the second filter 115 allows to pass through includes the second frequency band. The second filter 115 is connected in parallel with the first filter 114.

[0074] For example, the second frequency band is the Wi-Fi 2.4G band. The second filter 115 is used to allow the Wi-Fi 2.4G band to pass through.

[0075] The first antenna radiator 116 is electrically connected to the other end of the first filter 114. The first antenna radiator 116 is used to transmit and receive the first network signal in the first frequency band.

[0076] The second antenna radiator 117 is electrically connected to the other end of the second filter 115. The second antenna radiator 117 is used to transmit and receive the second network signal in the second frequency band.

[0077] When the first switching unit 111 connects the first port 101 of the first radio frequency transceiver module 110 to the first front-end circuit 112, the first network signal of the first frequency band emitted by the first port 101 of the first radio frequency transceiver module 110 is amplified by the transmission path of the first front-end circuit 112, and then transmitted to the first antenna radiator 116 through the second switching unit 113 and the first filter 114, so that the first antenna radiator 116 transmits the first network signal of the first frequency band; the first antenna radiator 116 also receives the first network signal of the first frequency band, and then transmits it to the first radio frequency transceiver module 110 after passing through the receiving channel of the first filter 114, the second switching unit 113, and the first front-end circuit 112.

[0078] When the first switching unit 111 turns on the second RF transceiver module 120 and the first front-end circuit 112, the second network signal of the second frequency band emitted by the second port 102 of the second RF transceiver module 120 is amplified by the first front-end circuit 112, then passed through the second switching unit 113 and the second filter 115, and sent to the second antenna radiator 117, causing the second antenna radiator 117 to emit the second network signal of the second frequency band; the second antenna radiator 117 also receives the second network signal of the second frequency band, and sends it to the second RF transceiver module 120 after passing through the receiving channels of the second filter 115, the second switching unit 113, and the first front-end circuit 112.

[0079] As can be seen from the above, this embodiment can transmit and receive first network signals and second network signals of different communication standards. These two network signals reuse the first front-end circuit 112. Compared with configuring a first front-end circuit 112 for each type of network signal, the number of first front-end circuits 112 can be reduced. Thus, while ensuring that the first network signal and the second network signal can be supported, the number of devices in the first front-end circuit 112 and the area occupied by the devices are also reduced.

[0080] Optionally, the number of first antenna radiators 116 can be one or more. When there are multiple first antenna radiators 116, the first antenna switch is electrically connected between the multiple first antenna radiators 116 and the first filter 114. The first network signal (e.g., N41) of the first frequency band output from the first filter 114 can be switched by the first antenna switch to be transmitted by the first antenna radiators 116 at different positions, thereby obtaining a stronger signal strength. Furthermore, the first antenna switch can also be switched to receive the first network signal (e.g., N41) of the first frequency band at different positions of the first antenna radiators 116 to receive a stronger signal strength and improve the Internet access experience. In other words, the radio frequency system 100 can support single-input single-output of the first network signal (e.g., N41) of the first frequency band, and can also support multiple-input multiple-output.

[0081] The number of second antenna radiators 117 can also be designed with reference to the number of first antenna radiators 116.

[0082] This application provides a radio frequency (RF) system 100, which includes a first RF transceiver module 110, a second RF transceiver module 120, a first switching unit 111, a first front-end circuit 112, a second switching unit 113, a first filter 114, a second filter 115, a first antenna radiator 116, and a second antenna radiator 117. The first RF transceiver module 110 is used to transmit and receive a first network signal in a first frequency band; the second RF transceiver module 120 is used to transmit and receive a second network signal in a second frequency band. The two selection terminals of the first switching unit 111 are electrically connected to the first RF transceiver module 110 and the second RF transceiver module 120, respectively. One end of the first front-end circuit 112 is electrically connected to the fixed end of the first switching unit 111; one end of the second switching unit 113 is electrically connected to the other end of the first front-end circuit 112. One end of the first filter 114 is electrically connected to the first selection terminal of the second switching unit 113, and the first filter 114 is used to allow the first network signal in the first frequency band to pass through. One end of the second filter 115 is electrically connected to the second selection terminal of the second switching unit 113, and the second filter 115 is used to allow the second network signal of the second frequency band to pass through. The first antenna radiator 116 is electrically connected to the other end of the first filter 114; the second antenna radiator 117 is electrically connected to the other end of the second filter 115. When the first switching unit 111 turns on the first RF transceiver module 110 and the first front-end circuit 112, the first front-end circuit 112 amplifies the first network signal of the first frequency band and sends it to the first antenna radiator 116, so that the first antenna radiator 116 is used to transmit and receive the first network signal of the first frequency band. When the second switching unit 113 turns on the second RF transceiver module 120 and the first front-end circuit 112, the first front-end circuit 112 amplifies the second network signal of the second frequency band and sends it to the second antenna radiator 117, so that the second antenna radiator 117 can be used to transmit and receive the second network signal of the second frequency band. In this way, the RF system 100 can support multiple network signals and reuse the first front-end circuit 112, simplifying the architecture of the RF system 100 and reducing the size occupied by the RF system 100.

[0083] As mentioned above, please refer to Figure 3 and Figure 4 The first front-end circuit 112 includes a first power amplifier PA1. The frequency response range of the first power amplifier PA1 covers the first frequency band and the second frequency band, so that the first power amplifier PA1 can amplify the first network signal in the first frequency band and also amplify the second network signal in the second frequency band, thereby facilitating the multiplexing of the first network signal and the second network signal by the first power amplifier PA1.

[0084] In this embodiment, the first power amplifier PA1 is a power amplifier used to amplify the first network signal; and / or, the first power amplifier PA1 is also a power amplifier used to amplify the second network signal.

[0085] For the first alternative implementation, please refer to Figure 5 The first power amplifier PA1 is a power amplifier used to amplify cellular mobile signals. The second network signal in the second frequency band is multiplexed to amplify the cellular mobile signals. In other words, connecting the second port 102 of the Wi-Fi RF transceiver module to the cellular mobile RF front-end circuit can reduce the design requirements of the Wi-Fi RF front-end circuit.

[0086] Specifically, for example, the first power amplifier PA1 is used to amplify cellular mobile signals in the 2.2-2.7 GHz band; in other words, the first power amplifier PA1 is an HB power amplifier. Thus, the first power amplifier PA1 can be used to amplify at least one of the B7, B38, B40, B41, N7, N38, N40, and N41 bands. Furthermore, by connecting the second port 102 of the Wi-Fi RF transceiver module to the cellular mobile RF front-end circuit, the first power amplifier PA1 is also used to amplify Wi-Fi signals in the 2.4-2.5 GHz band. For example, the first power amplifier PA1 (HB power amplifier) ​​can also amplify the Wi-Fi 2.4 GHz band.

[0087] To give a more specific example, the first power amplifier PA1 is used to amplify cellular mobile signals in the 3.3–3.8 GHz and 4.4–5 GHz frequency bands; in other words, the first power amplifier PA1 is a UHB power amplifier. Thus, the first power amplifier PA1 can be used to amplify at least one of the N77, N78, and N79 frequency bands. Furthermore, by connecting the second port 102 of the Wi-Fi RF transceiver module to the cellular mobile RF front-end circuit, the first power amplifier PA1 is also used to amplify Wi-Fi signals in the 5.15 GHz–5.85 GHz frequency band. For example, the first power amplifier PA1 (UHB power amplifier) ​​can also amplify the Wi-Fi 5G frequency band.

[0088] For the second alternative implementation, please refer to... Figure 3 The first power amplifier PA1 is a power amplifier used to amplify Wi-Fi signals. The second network signal of the second frequency band is multiplexed to amplify the Wi-Fi power amplifier. In other words, connecting the first port 101 of the cellular mobile RF transceiver module to the Wi-Fi RF front-end circuit can reduce the design requirements of the cellular mobile RF front-end circuit.

[0089] Specifically, for example, the first power amplifier PA1 is used to amplify Wi-Fi signals in the 2.4-2.5 GHz band; in other words, the first power amplifier PA1 is a Wi-Fi power amplifier. Thus, the first power amplifier PA1 can be used to amplify Wi-Fi signals in the 2.4 GHz band. Furthermore, by connecting the first port 101 of the cellular mobile RF transceiver module to the Wi-Fi RF front-end circuit, the first power amplifier PA1 is also used to amplify cellular mobile signals in the 2.2-2.7 GHz band. For example, the first power amplifier PA1 (Wi-Fi power amplifier) ​​can also amplify at least one of the following: B7 band, B38 band, B40 band, B41 band, N7 ​​band, N38 band, N40 band, and N41 band.

[0090] To give a more specific example, the first power amplifier PA1 is a Wi-Fi 5G power amplifier. Furthermore, by connecting the first port 101 of the cellular mobile radio frequency transceiver module to the Wi-Fi radio frequency front-end circuit, the first power amplifier PA1 is also used to amplify cellular mobile signals in the 4.4-5GHz frequency band. For example, the first power amplifier PA1 (Wi-Fi 5G power amplifier) ​​can also amplify at least one of the N77 band, N78 band, N79 band, etc.

[0091] As mentioned above, the first power amplifier PA1 can amplify not only the first network signal and the second network signal of two different communication standards. Furthermore, the difference between the center frequency of the first frequency band and the center frequency of the second frequency band is less than or equal to a first preset frequency band. This application does not provide a specific description of the first preset frequency band. The first frequency band and the second frequency band are similar frequency bands. For example, the second frequency band is 2.412-2.484GHz, and the first frequency band is 2.496-2.696GHz; or, for another example, the first frequency band is 4.4-5GHz, and the second frequency band is 5.15GHz-5.85GHz. On the one hand, the first and second frequency bands are close to each other, so that the first and second frequency bands can reuse the same first power amplifier PA1 for amplification. In this way, the frequency response of the first power amplifier PA1 can cover the first and second frequency bands, and the bandwidth requirement of the first power amplifier PA1 is not too large. On the other hand, the first and second frequency bands can be distinguished by different filters, so that the first frequency band can be passed by designing the first filter 114 and the second frequency band can be passed by designing the second filter 115.

[0092] In this embodiment, the first network signal includes a cellular mobile signal. The second network signal includes a short-range signal, which includes, but is not limited to, at least one of Wi-Fi, Bluetooth, NFC, and UWB signals.

[0093] In this embodiment, the second network signal is taken as a Wi-Fi signal. Accordingly, the first radio frequency transceiver module 110 is a cellular mobile radio frequency transceiver module, and the second radio frequency transceiver module 120 is a Wi-Fi radio frequency transceiver module. It can be seen that the radio frequency system 100 provided in this embodiment can support the transmission and reception of cellular mobile signals and short-range signals.

[0094] In one optional implementation, the first frequency band includes at least one of the HB bands, such as at least one of the B7, B38, B40, B41, N7, N38, N40, and N41 bands. The second frequency band includes the Wi-Fi 2.4G band.

[0095] In another alternative implementation, the first frequency band includes at least one of the UHB frequency bands, such as at least one of the N77, N78, and N79 frequency bands. The second frequency band includes the Wi-Fi 5G frequency band.

[0096] Optionally, the aforementioned first antenna radiator 116 and second antenna radiator 117 may be the same antenna radiator or different antenna radiators.

[0097] In this embodiment, please refer to Figure 6 The first antenna radiator 116 and the second antenna radiator 117 are the same radiator and are referred to as the first radiator 1167. The radio frequency system 100 also includes a first antenna switch 118. The selection terminal of the first antenna switch 118 is connected to the first filter 114 and the second filter 115, respectively. The fixed terminal of the first antenna switch 118 is electrically connected to the first radiator 1167.

[0098] When the first switching unit 111 turns on the first radio frequency transceiver module 110 and the first front-end circuit 112, the second switching unit 113 turns on the first front-end circuit 112 and the first filter 114, and the first antenna switch 118 turns on the first filter 114 and the first radiator 1167. In this way, the first radiator 1167 can transmit and receive the first network signal of the first frequency band.

[0099] When the second switching unit 113 connects the second RF transceiver module 120 and the first front-end circuit 112, the second switching unit 113 connects the first front-end circuit 112 and the second filter 115, and the first antenna switch 118 connects the second filter 115 and the first radiator 1167. In this way, the first radiator 1167 can transmit and receive the second network signal of the second frequency band.

[0100] In this embodiment, two different network signals share a first radiator 1167, which can reduce the number of antenna radiators and further reduce the space occupied by the radio frequency system 100 on the electronic device. This allows for more space to be reserved on the electronic device to support other antennas, which is beneficial for the electronic device to have more communication functions.

[0101] Furthermore, by switching the first radiator 1167 to operate in the first network signal of the first frequency band or the second network signal of the second frequency band through the first antenna switch 118, the isolation between the first network signal of the first frequency band and the second network signal of the second frequency band can be improved, so as to avoid coupling interference between the first network signal of the first frequency band and the second network signal of the second frequency band.

[0102] Optional, please refer to Figure 7 The first radio frequency transceiver module 110 further includes a third port 103, which is used to transmit and receive a first network signal in a third frequency band. The first network signal can be a cellular mobile signal. The third frequency band is a different frequency band from the first frequency band.

[0103] Please see Figure 7 The radio frequency system 100 further includes a third filter 1180 and a third antenna radiator 119. One end of the third filter 1180 is electrically connected to the third selection terminal of the second switching unit 113. The third filter 1180 is used to allow the first network signal of the third frequency band to pass through. The third filter 1180 is a bandpass filter. The frequency band that the third filter 1180 allows to pass through includes the third frequency band. The third filter 1180, the second filter 115, and the first filter 114 are all connected in parallel.

[0104] The third antenna radiator 119 is electrically connected to the other end of the third filter 1180. The third antenna radiator 119 is used to transmit and receive the first network signal of the third frequency band.

[0105] Furthermore, the third frequency band can be a frequency band similar to the first and second frequency bands, so that the first, second, and third frequency bands can all amplify the transmitted signal through the same first power amplifier PA1 and amplify the received signal through the same first low-loss amplifier LNA1.

[0106] In other words, please see Figure 8The frequency response band of the first power amplifier PA1 can cover the first, second, and third frequency bands, and the frequency response band of the first low-loss amplifier LNA1 can also cover the first, second, and third frequency bands. Compared to setting one power amplifier for each frequency band, this embodiment can reduce the number of components, thereby reducing the space occupied by the RF system 100 and saving costs. For the first front-end circuit 112 as a Wi-Fi 2.4G RF front-end circuit, the frequency response BW2 of the first power amplifier PA1 is 2.412GHz-2.7GHz.

[0107] For example, the second band is the Wi-Fi 5G band. The first band is the N79 band. The third band is the N78 band.

[0108] For example, the second frequency band is the Wi-Fi 2.4G band. The first frequency band is the N41 band. The third frequency band is the B40 band.

[0109] When the first switching unit 111 connects the third port 103 of the first RF transceiver module 110 to the first front-end circuit 112, the first network signal of the third frequency band emitted by the third port 103 of the first RF transceiver module 110 is amplified by the transmission path of the first front-end circuit 112, and then transmitted to the third antenna radiator 119 through the second switching unit 113 and the third filter 1180, so that the third antenna radiator 119 transmits the first network signal of the third frequency band; the third antenna radiator 119 also receives the first network signal of the third frequency band, and then transmits it to the third port 103 of the first RF transceiver module 110 after passing through the receiving channel of the third filter 1180, the second switching unit 113, and the first front-end circuit 112.

[0110] Accordingly, the first antenna radiator 116 and the third antenna radiator 119 mentioned above can be the same antenna radiator or different antenna radiators.

[0111] In an optional embodiment, the first antenna radiator 116, the second antenna radiator 117, and the third antenna radiator 119 are the same radiator and are referred to as the first radiator 1167. The radio frequency system 100 also includes a first antenna switch 118. The selection terminal of the first antenna switch 118 is connected to the first filter 114, the second filter 115, and the third filter 1180, respectively. The fixed terminal of the first antenna switch 118 is electrically connected to the first radiator 1167. The first antenna switch 118 is used to switch to different filters to conduct a first network signal in a first frequency band, or a second network signal in a second frequency band, or a first network signal in a third frequency band.

[0112] The above describes an implementation where the first front-end circuit 112 is followed by the second switching unit 113 and then connected to three filters. In other implementations, the first front-end circuit 112 is followed by the second switching unit 113 and then connected to four, five, or more filters.

[0113] For example, multiple filters are used to allow any combination of Wi-Fi 5G band, N79 band, N78 band, N77 band, and UWB band to pass through.

[0114] For another example, multiple filters are used to allow any combination of Wi-Fi 2.4G band, B7 band, B38 band, B40 band, B41 band, N7 ​​band, N38 band, N40 band, N41 band, and Bluetooth band.

[0115] In one optional implementation, the first frequency band is the HB band and the second frequency band is the Wi-Fi 2.4G band, for example.

[0116] Please see Figure 9 The first radio frequency transceiver module 110 further includes a fourth port 104, and the signals transmitted and received by the fourth port 104 include the first network signal of the fourth frequency band. In other words, the first radio frequency transceiver module 110 is also used to transmit and receive the first network signal of the fourth frequency band.

[0117] When the first network signal is a cellular mobile network signal, the fourth frequency band includes, but is not limited to, at least one of the LB band, MB band, HB band, and UHB band.

[0118] Please see Figure 9 The second RF transceiver module 120 further includes a fifth port 105, which transmits and receives signals including second network signals in the fifth frequency band. In other words, the second RF transceiver module 120 is also used to transmit and receive second network signals in the fifth frequency band.

[0119] When the second network signal is a Wi-Fi signal, the fifth frequency band includes, but is not limited to, the Wi-Fi 2.4G frequency band, the Wi-Fi 5G frequency band, or the Wi-Fi 6G frequency band.

[0120] Please see Figure 9 The radio frequency system 100 further includes a third switching unit 121, a second front-end circuit 122, a fourth switching unit 123, a fourth filter 124, a fifth filter 125, a fourth antenna radiator 126, and a fifth antenna radiator 127.

[0121] The two selection terminals of the third switching unit 121 are electrically connected to the first RF transceiver module 110 and the second RF transceiver module 120, respectively. Specifically, the two selection terminals of the third switching unit 121 are electrically connected to the fourth port 104 and the fifth port 105, respectively.

[0122] One end of the second front-end circuit 122 is electrically connected to the fixed end of the third switching unit 121.

[0123] Specifically, the second front-end circuit 122 is also referred to as the RF front-end circuit connected between the RF transceiver module and the antenna radiator. The second front-end circuit 122 includes at least one transmit channel and at least one receive channel. The structure and function of the second front-end circuit 122 can be referred to the relevant content of the first front-end circuit 112 described above.

[0124] One end of the fourth switching unit 123 is electrically connected to the other end of the second front-end circuit 122. The two selection terminals of the fourth switching unit 123 are respectively connected to the fourth filter 124 and the fifth filter 125.

[0125] One end of the fourth filter 124 is electrically connected to the first selection terminal of the fourth switching unit 123. The fourth filter 124 is used to allow the first network signal of the fourth frequency band to pass through. The fourth filter 124 is a bandpass filter. The frequency band that the fourth filter 124 allows to pass through includes the fourth frequency band.

[0126] For example, the fourth frequency band is the N78 band. The fourth filter 124 is used to allow cellular mobile signals in the N78 band to pass through.

[0127] One end of the fifth filter 125 is electrically connected to the second selection terminal of the fourth switching unit 123. The fifth filter 125 is used to allow the second network signal of the fifth frequency band to pass through. The fifth filter 125 is a bandpass filter. The frequency band that the fifth filter 125 allows to pass through includes the fifth frequency band.

[0128] For example, the fifth frequency band is the Wi-Fi 5G band. The fifth filter 125 is used to allow the Wi-Fi 5G band to pass through.

[0129] The fourth antenna radiator 126 is electrically connected to the other end of the fourth filter 124. The fourth antenna radiator 126 is used to transmit and receive the first network signal of the fourth frequency band.

[0130] The fifth antenna radiator 127 is electrically connected to the other end of the fifth filter 125. The fifth antenna radiator 127 is used to transmit and receive the second network signal of the fifth frequency band.

[0131] When the third switching unit 121 connects the fourth port 104 of the first RF transceiver module 110 to the second front-end circuit 122, the first network signal of the fourth frequency band emitted by the fourth port 104 of the first RF transceiver module 110 is amplified by the transmission path of the second front-end circuit 122, then transmitted through the fourth switching unit 123 and the fourth filter 124, and sent to the fourth antenna radiator 126, causing the fourth antenna radiator 126 to transmit the first network signal of the fourth frequency band; the fourth antenna radiator 126 also receives the first network signal of the fourth frequency band, and then transmits it to the first RF transceiver module 110 after passing through the receiving channel of the fourth filter 124, the fourth switching unit 123, and the second front-end circuit 122.

[0132] When the third switching unit 121 turns on the second RF transceiver module 120 and the second front-end circuit 122, the second network signal of the fifth frequency band emitted by the second port 102 of the second RF transceiver module 120 is amplified by the second front-end circuit 122, then passed through the fourth switching unit 123 and the fifth filter 125, and sent to the fifth antenna radiator 127, causing the fifth antenna radiator 127 to transmit the second network signal of the fifth frequency band; the fifth antenna radiator 127 also receives the second network signal of the fifth frequency band, and after passing through the receiving channels of the fifth filter 125, the fourth switching unit 123, and the second front-end circuit 122, it is sent to the second RF transceiver module 120.

[0133] As can be seen from the above, this embodiment can transmit and receive first network signals and second network signals of different communication standards. These two network signals reuse the second front-end circuit 122. Compared with configuring a second front-end circuit 122 for each type of network signal, the number of second front-end circuits 122 can be reduced. Thus, while ensuring that the first network signal and the second network signal can be supported, the number of devices in the second front-end circuit 122 and the area occupied by the devices are also reduced.

[0134] Please see Figure 7 and Figure 9 The number of the third antenna radiator 119, or the fourth antenna radiator 126, or the fifth antenna radiator 127 can also be designed with reference to the number of the first antenna radiator 116.

[0135] Optional, please refer to Figure 9 and Figure 10The second front-end circuit 122 includes a second power amplifier PA2. The frequency response range of the second power amplifier PA2 covers the fourth and fifth frequency bands, so that the second power amplifier PA2 can amplify the first network signal in the fourth frequency band and the second network signal in the fifth frequency band, thereby facilitating the multiplexing of the first and second network signals by the second power amplifier PA2. For the first front-end circuit 112 as a Wi-Fi 5G radio frequency front-end circuit, the frequency response BW5 of the second power amplifier PA2 is 4.4GHz-5.85GHz.

[0136] The second power amplifier PA2 is a power amplifier used to amplify the first network signal; or, the second power amplifier PA2 is a power amplifier used to amplify the second network signal.

[0137] For the first alternative implementation, please refer to Figure 11 The second power amplifier PA2 is a power amplifier used to amplify cellular mobile signals. The second network signal in the second frequency band is multiplexed to amplify the cellular mobile signal. In other words, connecting the fifth port 105 of the Wi-Fi RF transceiver module to the cellular mobile RF front-end circuit reduces the design complexity of the Wi-Fi RF front-end circuit.

[0138] To give a more specific example, the second power amplifier PA2 is used to amplify cellular mobile signals in the 3.3–3.8 GHz and 4.4–5 GHz frequency bands; in other words, the second power amplifier PA2 is a UHB power amplifier. Thus, the second power amplifier PA2 can be used to amplify at least one of the N77, N78, and N79 frequency bands. Furthermore, by connecting the fifth port 105 of the Wi-Fi RF transceiver module to the cellular mobile RF front-end circuit, the second power amplifier PA2 is also used to amplify Wi-Fi signals in the 5.15 GHz–5.85 GHz frequency band. For example, the second power amplifier PA2 (UHB power amplifier) ​​can also amplify the Wi-Fi 5G frequency band.

[0139] For the second alternative implementation, please refer to... Figure 9 The second power amplifier PA2 is used to amplify Wi-Fi signals. The second network signal in the second frequency band is multiplexed to amplify the Wi-Fi power amplifier. In other words, connecting the fourth port 104 of the cellular mobile RF transceiver module to the Wi-Fi RF front-end circuit reduces the design complexity of the cellular mobile RF front-end circuit.

[0140] Specifically, for example, the second power amplifier PA2 is used to amplify Wi-Fi signals in the 2.4-2.5 GHz band; in other words, the second power amplifier PA2 is a Wi-Fi power amplifier. Thus, the second power amplifier PA2 can be used to amplify Wi-Fi signals in the 2.4 GHz band. Furthermore, by connecting the fourth port 104 of the cellular mobile RF transceiver module to the Wi-Fi RF front-end circuit, the second power amplifier PA2 is also used to amplify cellular mobile signals in the 2.2-2.7 GHz band. For example, the second power amplifier PA2 (Wi-Fi power amplifier) ​​can also amplify at least one of the following: B7 band, B38 band, B40 band, B41 band, N7 ​​band, N38 band, N40 band, and N41 band.

[0141] To give a more specific example, the second power amplifier PA2 is a Wi-Fi 5G power amplifier. Furthermore, by connecting the fourth port 104 of the cellular mobile RF transceiver module to the Wi-Fi RF front-end circuit, the second power amplifier PA2 is also used to amplify cellular mobile signals in the 4.4-5GHz frequency band. For example, the second power amplifier PA2 (Wi-Fi 5G power amplifier) ​​can also amplify at least one of the N77 band, N78 band, N79 band, etc.

[0142] Optionally, the first network signal includes cellular mobile signals. The second network signal includes short-range signals.

[0143] The first frequency band includes at least one of the HB bands, such as at least one of the B7, B38, B40, B41, N7, N38, N40, and N41 bands. The second frequency band includes the Wi-Fi 2.4G band. The fourth frequency band includes at least one of the UHB bands, such as at least one of the N77, N78, and N79 bands. The fifth frequency band includes the Wi-Fi 5G band.

[0144] Optional, please refer to Figure 12 The first radio frequency transceiver module 110 further includes a sixth port 106, which is used to transmit and receive a first network signal in a sixth frequency band. The first network signal can be a cellular mobile signal. The sixth frequency band is a different frequency band from the first frequency band. The first radio frequency transceiver module 110 is also used to transmit and receive the first network signal in the sixth frequency band.

[0145] Please see Figure 12 The radio frequency system 100 also includes a sixth filter 128 and a sixth antenna radiator 129.

[0146] One end of the sixth filter 128 is electrically connected to the third selection terminal of the fourth switching unit 123. The sixth filter 128 is used to allow the first network signal of the sixth frequency band to pass through. The sixth filter 128, the fifth filter 125, and the fourth filter 124 are all connected in parallel.

[0147] The sixth antenna radiator 129 is electrically connected to the other end of the sixth filter 128. The sixth antenna radiator 129 is used to transmit and receive the first network signal of the sixth frequency band.

[0148] Furthermore, the sixth frequency band can be a frequency band similar to the fourth and fifth frequency bands, so that the fourth, fifth, and sixth frequency bands can all amplify the transmitted signal through the same second power amplifier PA2 and amplify the received signal through the same second low-loss amplifier.

[0149] In other words, the frequency response band of the second power amplifier PA2 can cover the fourth, fifth and sixth frequency bands, and the frequency response band of the second low-loss amplifier can cover the fourth, fifth and sixth frequency bands. Compared with setting one power amplifier for each frequency band, this embodiment can reduce the number of devices, thereby reducing the space occupied by the RF system 100 and saving costs.

[0150] For example, the fourth frequency band is the N79 band. The fifth frequency band is the Wi-Fi 5G band. The sixth frequency band is the N78 band.

[0151] When the third switching unit 121 connects the sixth port 106 of the first RF transceiver module 110 to the second front-end circuit 122, the first network signal of the sixth frequency band emitted by the sixth port 106 of the first RF transceiver module 110 is amplified by the transmission path of the second front-end circuit 122, then transmitted through the fourth switching unit 123 and the sixth filter 128, and sent to the sixth antenna radiator 129, causing the sixth antenna radiator 129 to transmit the first network signal of the sixth frequency band; the sixth antenna radiator 129 also receives the first network signal of the sixth frequency band, and after passing through the receiving channel of the sixth filter 128, the fourth switching unit 123, and the second front-end circuit 122, it is sent to the sixth port 106 of the first RF transceiver module 110.

[0152] Accordingly, the aforementioned fourth antenna radiator 126, fifth antenna radiator 127 and sixth antenna radiator 129 may be the same antenna radiator or different antenna radiators.

[0153] This application does not impose specific limitations on the form of the first front-end circuit 112, the first switching unit 111, the second switching unit 113, the first filter 114, and the second filter 115.

[0154] In one alternative implementation, please refer to Figure 11 The first front-end circuit 112 is integrated with at least one of the first switching unit 111, the second switching unit 113, the first filter 114, and the second filter 115 into a single chip.

[0155] Optional, please refer to Figure 11 The first front-end circuit 112 can be a cellular mobile front-end circuit. The first power amplifier PA1, the first low-loss amplifier LNA1, the second switching unit 113, the first filter 114, the second filter 115, and the first antenna switch 118 in the first front-end circuit 112 are integrated into a single chip, which can be an L-PAMiD chip. The first front-end circuit 112 in this embodiment has a higher degree of integration.

[0156] Furthermore, the first power amplifier PA1 includes at least one of the LB power amplifier, MB power amplifier, and HB power amplifier. In other words, the first front-end circuit 112 can integrate the LB, MB, and HB power amplifiers and low-loss amplifiers to realize the transmission and reception of LB, MB, and HB.

[0157] In another optional embodiment, the first front-end circuit 112, the first switching unit 111, the second switching unit 113, the first filter 114, and the second filter 115 are independent devices.

[0158] For details, please refer to Figure 12 The first front-end circuit 112 can be a Wi-Fi front-end circuit. The first power amplifier PA1 and the first low-loss amplifier LNA1 of the first front-end circuit 112 are integrated into a single chip. The first switching unit 111, the second switching unit 113, the first filter 114, and the second filter 115 are located outside the first front-end circuit 112. This embodiment allows for more convenient modification of the circuit architecture around the first front-end circuit 112.

[0159] The second front-end circuit 122 is integrated with at least one of the third switch unit 121, the fourth switch unit 123, the fourth filter 124, and the fifth filter 125 into a single chip.

[0160] For details, please refer to Figure 11The second front-end circuit 122 can be a cellular mobile front-end circuit. The second power amplifier PA2, the second low-loss amplifier, the fourth switching unit 123, the fourth filter 124, the fifth filter 125, and the third switching unit 121 in the second front-end circuit 122 are integrated into a single chip, which can be an L-PAMiD chip. The first front-end circuit 112 in this embodiment has a higher degree of integration.

[0161] The second front-end circuit 122, the third switching unit 121, the fourth switching unit 123, the fourth filter 124, and the fifth filter 125 are independent devices.

[0162] For details, please refer to Figure 12 The second front-end circuit 122 can be a Wi-Fi front-end circuit. The second power amplifier PA2 and the second low-loss amplifier of the second front-end circuit 122 are integrated into a single chip. The third switching unit 121, the fourth switching unit 123, the fourth filter 124, and the fifth filter 125 are located outside the second front-end circuit 122. This embodiment allows for more convenient modification of the circuit architecture around the second front-end circuit 122.

[0163] Please see Figure 11 and Figure 13 The fourth antenna radiator 126 and the fifth antenna radiator 127 are the same radiator and are referred to as the second radiator 1267. The radio frequency system 100 also includes a second antenna switch 182. The selection terminal of the second antenna switch 182 is connected to the fourth filter 124 and the fifth filter 125, respectively. The fixed terminal of the second antenna switch 182 is electrically connected to the second radiator 1267.

[0164] When the third switching unit 121 turns on the first RF transceiver module 110 and the second front-end circuit 122, the fourth switching unit 123 turns on the second front-end circuit 122 and the fourth filter 124, and the second antenna switch 182 turns on the fourth filter 124 and the second radiator 1267. In this way, the second radiator 1267 can transmit and receive the first network signal of the fourth frequency band.

[0165] When the fourth switch unit 123 turns on the second RF transceiver module 120 and the second front-end circuit 122, the fourth switch unit 123 turns on the second front-end circuit 122 and the fifth filter 125, and the second antenna switch 182 turns on the fifth filter 125 and the second radiator 1267. In this way, the second radiator 1267 can transmit and receive the second network signal of the fifth frequency band.

[0166] In this embodiment, two different network signals share a second radiator 1267, which can reduce the number of antenna radiators and further reduce the space occupied by the radio frequency system 100 on the electronic device. This allows for more space to be reserved on the electronic device to support other antennas, which is beneficial for the electronic device to have more communication functions.

[0167] Furthermore, by switching the second radiator 1267 to operate in the first network signal of the fourth frequency band or the second network signal of the fifth frequency band via the second antenna switch 182, the isolation between the first network signal of the fourth frequency band and the second network signal of the fifth frequency band can be improved, so as to avoid coupling interference between the first network signal of the fourth frequency band and the second network signal of the fifth frequency band.

[0168] Further, please refer to Figure 12 and Figure 13 The fourth antenna radiator 126, the fifth antenna radiator 127, and the sixth antenna radiator 129 are the same radiator and are referred to as the second radiator 1267. The radio frequency system 100 also includes a second antenna switch 182. The selection terminal of the second antenna switch 182 is connected to the fourth filter 124, the fifth filter 125, and the sixth filter 128, respectively. The fixed terminal of the second antenna switch 182 is electrically connected to the second radiator 1267.

[0169] Further optionally, when the difference between the two frequency bands is greater than or equal to the first preset frequency band, the antenna radiators of the two frequency bands can be combined by a combiner and reuse the same antenna radiator.

[0170] Optionally, since there is a certain gap between the second frequency band and the fifth frequency band, the second frequency band and the fifth frequency band can be combined into a single antenna radiator using a combiner.

[0171] Specifically, the second antenna radiator 117 and the fifth antenna radiator 127 are the same radiator and are referred to as the first sub-radiator.

[0172] Please see Figure 14 The radio frequency system 100 further includes a first combiner 192. One side of the first combiner 192 is electrically connected to the second filter 115 and the fifth filter 125. The other end of the first combiner 192 is electrically connected to the first sub-radiator 130.

[0173] For example, the second frequency band is the Wi-Fi 2.4G band, and the fifth frequency band is the Wi-Fi 5G band. Since the second and fifth frequency bands differ significantly, the coupling effect is small. In this embodiment, the first combiner 192 combines the transceiver channels of the Wi-Fi 2.4G band and the Wi-Fi 5G band and reuses the same first sub-radiator 130. This reduces the number of antenna radiators required, further reducing the space occupied by the RF system 100 on the electronic device. This allows for more space to be reserved on the electronic device to support other antennas, enabling the electronic device to have more communication functions.

[0174] Optionally, since there is a certain gap between the second and fourth frequency bands, the second and fourth frequency bands can be combined into a single antenna radiator using a combiner.

[0175] Specifically, the second antenna radiator 117 and the fourth antenna radiator 126 are the same radiator and are referred to as the second sub-radiator.

[0176] Please see Figure 15 The radio frequency system 100 further includes a second combiner 131. One side of the second combiner 131 is electrically connected to the second filter 115 and the fourth filter 124. The other end of the second combiner 131 is electrically connected to the second sub-radiator 132.

[0177] For example, the second frequency band is the Wi-Fi 2.4G band, and the fourth frequency band is the N79 band. Since the second and fourth frequency bands differ significantly, the coupling effect is small. In this embodiment, the second combiner 131 combines the transceiver channels of the Wi-Fi 2.4G band and the N79 band and reuses the same second sub-radiator 132. This reduces the number of antenna radiators required, further reducing the space occupied by the RF system 100 on the electronic device. This allows for more space to be reserved on the electronic device to support other antennas, enabling the electronic device to have more communication functions.

[0178] Optionally, since there is a certain gap between the first frequency band and the fifth frequency band, the first frequency band and the fifth frequency band can be combined into a single antenna radiator using a combiner.

[0179] Specifically, the first antenna radiator 116 and the fifth antenna radiator 127 are the same radiator and are referred to as the third sub-radiator.

[0180] Please see Figure 16 The radio frequency system 100 further includes a third combiner 133. One side of the third combiner 133 is electrically connected to the first filter 114 and the fifth filter 125. The other end of the third combiner 133 is electrically connected to the third sub-radiator 134.

[0181] For example, the first frequency band is the N41 band, and the fifth frequency band is the Wi-Fi 5G band. Since the first and fifth frequency bands differ significantly, the coupling effect is small. In this embodiment, the transceiver channels of the N41 band and the Wi-Fi 5G band are combined and multiplexed using the same third sub-radiator 134 via the third combiner 133. This reduces the number of antenna radiators required, further reducing the space occupied by the RF system 100 on the electronic device. This allows for more space to be reserved on the electronic device to support other antennas, enabling the electronic device to have more communication functions.

[0182] Optionally, since there is a certain gap between the first frequency band and the fourth frequency band, the first frequency band and the fourth frequency band can be combined into a single antenna radiator using a combiner.

[0183] Specifically, the second antenna radiator 117 and the fourth antenna radiator 126 are the same radiator and are referred to as the fourth sub-radiator.

[0184] Please see Figure 17 The radio frequency system 100 further includes a fourth combiner 135. One side of the fourth combiner 135 is electrically connected to the first filter 114 and the fourth filter 124. The other end of the fourth combiner 135 is electrically connected to the fourth sub-radiator 136.

[0185] For example, the first frequency band is the N41 band, and the fourth frequency band is the N79 band. Since the first and fourth frequency bands differ significantly, the coupling effect is small. In this embodiment, the transceiver channels of the N41 band and the N79 band are combined and multiplexed using the same fourth sub-radiator 136 via the fourth combiner 135. This reduces the number of antenna radiators required, further reducing the space occupied by the RF system 100 on the electronic device. This allows for more space to be reserved on the electronic device to support other antennas, enabling the electronic device to have more communication functions.

[0186] Optional, please refer to Figure 18 The radio frequency system 100 further includes a third front-end circuit 140 and a seventh antenna radiator 141. One end of the third front-end circuit 140 is electrically connected to the first radio frequency transceiver module 110. The other end of the third front-end circuit 140 is electrically connected to the seventh antenna radiator 141. The third front-end circuit 140 is used at least for transmitting and receiving the first network signal in the first frequency band.

[0187] Please see Figure 18The first radio frequency transceiver module 110 further includes a seventh port 107 as its signal transceiver port. The seventh port 107 is used to transmit and receive the first network signal of the first frequency band. One end of the third front-end circuit 140 is electrically connected to the seventh port 107. The other end of the third front-end circuit 140 is electrically connected to the seventh antenna radiator 141.

[0188] For example, the first frequency band is the N41 band.

[0189] Among them, the third front-end circuit 140 and the seventh antenna radiator 141 form a permanent antenna path supporting the N41 frequency band.

[0190] In situations where there are weak signal areas (such as underground parking lots) and where increased uplink coverage and download speed are required, the first switching unit 111 can be controlled to switch to the first port 101 of the first RF transceiver module 110 and the first front-end circuit 112, and the second switching unit 113 can be controlled to switch to conduct the first front-end circuit 112 and the first filter 114, forming a second antenna path supporting the N41 band. This achieves the 2Tx requirement of the N41 band, meaning the N41 band supports two transmission paths.

[0191] Under normal circumstances, the first switching unit 111 can be controlled to switch to the second port 102 of the second RF transceiver module 120 and the first front-end circuit 112, and the second switching unit 113 can be controlled to switch to conduct the first front-end circuit 112 and the second filter 115, so that the RF system 100 can support the N41 band + Wi-Fi 2.4G band. Among them, the operating mode of the N41 band can be single-input single-output or multiple-input multiple-output.

[0192] Further optional information can be found in [link to relevant documentation]. Figure 18 The third front-end circuit 140 includes a third power amplifier PA3, a third frequency selection switch 142, a third front-end filter 143, and a third front-end switch 144, which are connected in sequence.

[0193] In one optional embodiment, the third power amplifier PA3 is integrated with at least one of the third frequency selection switch 142, the third front-end filter 143, and the third front-end switch 144 into a single chip.

[0194] For example, the third front-end circuit 140 is a cellular mobile front-end circuit. The third power amplifier PA3, the third low-loss amplifier, the third frequency selection switch 142, the third front-end filter 143, and the third front-end switch 144 in the third front-end circuit 140 are integrated into a single chip, which can be an L-PAMiD chip. The third front-end circuit 140 in this embodiment has a higher degree of integration.

[0195] Furthermore, the third power amplifier PA3 includes at least one of the LB power amplifier, MB power amplifier, and HB power amplifier. In other words, the third front-end circuit 140 can integrate LB, MB, and HB power amplifiers and low-loss amplifiers to realize the transmission and reception of LB, MB, and HB.

[0196] In another alternative implementation, the third power amplifier PA3, the third frequency selection switch 142, the third front-end filter 143, and the third front-end switch 144 are independent devices.

[0197] Specifically, the third power amplifier PA3, the third low-loss amplifier, and the third frequency selection switch 142 of the third front-end circuit 140 are integrated into a single chip. The third front-end filter 143 and the third front-end switch 144 are located outside the third front-end circuit 140. In this embodiment, it is easier to create more circuit architecture modifications around the third front-end circuit 140.

[0198] In one alternative implementation, please refer to Figure 18 and Figure 19 The third front-end switch 144 includes an antenna switch 1441 or a switching switch 1442.

[0199] Optionally, the antenna switch 1441 can switch between different antenna radiators in the same frequency band, and can also switch between different frequency bands.

[0200] Optionally, the switch 1442 can switch between different antenna radiators within the same frequency band. Since different antenna radiators are located in different positions on the electronic device, by switching between different antenna radiators, the position of the antenna radiator with optimal performance can be determined to obtain better signal strength; the switch 1442 can also support multiple input multiple output modes within the same frequency band.

[0201] The switching switch 1442 includes, but is not limited to, an SRS switching switch 1442. SRS antenna round-robin technology allows the terminal to transmit SRS (Sounding Reference Signal) signals on multiple antennas in turn, thereby providing more comprehensive channel information and helping the base station to perform more accurate data transmission. For example, in a 2T4R configuration, the electronic device transmits SRS signals on four antenna radiators in turn, selecting two antenna radiators to transmit at a time to fully utilize the multiple antenna radiators on the electronic device.

[0202] In this embodiment, only three RF front-end circuits are needed to support a first frequency band (e.g., N41 in HB) + a second frequency band (e.g., Wi-Fi 2.4G) + a fourth frequency band (e.g., N79 in UHB) / a fifth frequency band (e.g., Wi-Fi 5G), or support a 2T4R circuit for the first frequency band (e.g., N41 in HB) + a fourth frequency band (e.g., N79 in UHB) / a fifth frequency band (e.g., Wi-Fi 5G).

[0203] Optional, please refer to Figure 20 The radio frequency system 100 further includes a fourth front-end circuit 150 and an eighth antenna radiator 151. One end of the fourth front-end circuit 150 is electrically connected to the first radio frequency transceiver module 110. The other end of the fourth front-end circuit 150 is electrically connected to the eighth antenna radiator 151. The fourth front-end circuit 150 is used at least for transmitting and receiving the first network signal of the fourth frequency band.

[0204] Furthermore, the radio frequency system 100 also includes a sixth filter 128 and a sixth antenna radiator 129 to support a sixth frequency band.

[0205] For example, the first frequency band is the N41 band in HB. The second frequency band is the Wi-Fi 2.4G band. The fourth frequency band is the N79 band in UHB. The fifth frequency band is the Wi-Fi 5G band. The sixth frequency band is the N78 band in UHB.

[0206] The fourth front-end circuit 150 and the eighth antenna radiator 151 form a resident antenna path supporting the N79 frequency band. The N79 frequency band can operate in either single-input single-output or multiple-input multiple-output modes.

[0207] Referring to the N41 frequency band in the previous embodiment, the third switch unit 121 and the fourth switch unit 123 are controlled to make the third front-end circuit 140 form the second antenna path of N79, which is conducive to forming the 2T4R of N79 (two transmitting antennas and four receiving antennas).

[0208] Further optional information can be found in [link to relevant documentation]. Figure 20 The fourth front-end circuit 150 includes a fourth power amplifier PA5, a fourth frequency selection switch 152, a fourth front-end filter 153, and a fourth front-end switch 154, which are connected in sequence.

[0209] In one optional implementation, the fourth power amplifier PA5 is integrated with at least one of the fourth frequency selection switch 152, the fourth front-end filter 153, and the fourth front-end switch 154 into a single chip.

[0210] For example, the fourth front-end circuit 150 is a front-end circuit for cellular mobile applications. The fourth power amplifier PA5, the fourth low-loss amplifier, the fourth frequency selection switch 152, the fourth front-end filter 153, and the fourth front-end switch 154 in the fourth front-end circuit 150 are integrated into a single chip, which can be an L-PAMiD chip. The fourth front-end circuit 150 in this embodiment has a higher degree of integration.

[0211] Furthermore, the fourth power amplifier PA5 includes at least one of the LB power amplifier, MB power amplifier, and HB power amplifier. In other words, the fourth front-end circuit 150 can integrate LB, MB, and HB power amplifiers and low-loss amplifiers to realize the transmission and reception of LB, MB, and HB.

[0212] In another alternative implementation, the fourth power amplifier PA5, the fourth frequency selection switch 152, the fourth front-end filter 153, and the fourth front-end switch 154 are independent devices.

[0213] Specifically, the fourth power amplifier PA5, the fourth low-loss amplifier, and the fourth frequency selection switch 152 of the fourth front-end circuit 150 are integrated into a single chip. The fourth front-end filter 153 and the fourth front-end switch 154 are located outside the fourth front-end circuit 150. In this embodiment, it is easier to create more circuit architecture modifications around the fourth front-end circuit 150.

[0214] In one optional implementation, the fourth front-end switch 154 includes an antenna switch or a switching switch.

[0215] Optionally, the antenna switch can switch between different antenna radiators within the same frequency band, and can also switch between different frequency bands. Alternatively, the switch can switch between different antenna radiators within the same frequency band.

[0216] In this embodiment, only four RF front-end circuits are needed to support switching between a first frequency band (e.g., N41 in HB) + a second frequency band (e.g., Wi-Fi 2.4G) and a 2T4R that supports the first frequency band (e.g., N41 in HB).

[0217] Switching between the fourth band (e.g., N79 in UHB) + the fifth band (e.g., Wi-Fi 5G) and the 2T4R of the fourth band (e.g., N79 in UHB) can create more band combinations.

[0218] Of course, in this embodiment, the radio frequency system 100 may also exclude the sixth filter 128 and the sixth antenna radiator 129 in order to support the sixth frequency band.

[0219] Please see Figure 21 and Figure 22 The radio frequency system 100 further includes a fifth front-end circuit 160 and a ninth antenna radiator 161. One end of the fifth front-end circuit 160 is electrically connected to the first radio frequency transceiver module 110. The other end of the fifth front-end circuit 160 is electrically connected to the ninth antenna radiator 161. The fifth front-end circuit 160 is used at least for transmitting and receiving the first network signal of the sixth frequency band.

[0220] Furthermore, the radio frequency system 100 also includes a sixth filter 128 and a sixth antenna radiator 129 to support a sixth frequency band.

[0221] For example, the first frequency band is the N41 band in HB. The second frequency band is the Wi-Fi 2.4G band. The fifth frequency band is the N79 band in UHB. The sixth frequency band is the Wi-Fi 5G band.

[0222] The fifth front-end circuit 160 and the ninth antenna radiator 161 form a resident antenna path supporting the N78 frequency band. The N78 frequency band can operate in either single-input single-output or multiple-input multiple-output modes.

[0223] Referring to the N41 frequency band in the previous embodiment, the third switch unit 121 and the fourth switch unit 123 are controlled to enable the fifth front-end circuit 160 to form the second antenna path of N78, which is conducive to forming the 2T4R (two transmitting antennas and four receiving antennas) of N78.

[0224] Further optional information can be found in [link to relevant documentation]. Figure 21 and Figure 22 The fifth front-end circuit 160 includes a fifth power amplifier PA6, a fifth frequency selection switch 162, a fifth front-end filter 163, and a fifth front-end switch 164, which are connected in sequence.

[0225] In one alternative embodiment, the fifth power amplifier PA6 is integrated with at least one of the fifth frequency selection switch 162, the fifth front-end filter 163, and the fifth front-end switch 164 into a single chip.

[0226] For example, the fifth front-end circuit 160 is a cellular mobile front-end circuit. The fifth power amplifier PA6, the fifth low-loss amplifier, the fifth frequency selection switch 162, the fifth front-end filter 163, and the fifth front-end switch 164 in the fifth front-end circuit 160 are integrated into a single chip, which can be an L-PAMiD chip. The fifth front-end circuit 160 in this embodiment has a higher degree of integration.

[0227] Furthermore, the fifth power amplifier PA6 includes at least one of the LB power amplifier, MB power amplifier, and HB power amplifier. In other words, the fifth front-end circuit 160 can integrate LB, MB, and HB power amplifiers and low-loss amplifiers to realize the transmission and reception of LB, MB, and HB.

[0228] In another alternative implementation, the fifth power amplifier PA6, the fifth frequency selection switch 162, the fifth front-end filter 163, and the fifth front-end switch 164 are independent devices.

[0229] Specifically, the fifth power amplifier PA6, the fifth low-loss amplifier, and the fifth frequency selection switch 162 of the fifth front-end circuit 160 are integrated into a single chip. The fifth front-end filter 163 and the fifth front-end switch 164 are located outside the fifth front-end circuit 160. In this embodiment, it is easier to create more circuit architecture modifications around the fifth front-end circuit 160.

[0230] In one optional implementation, the fifth front-end switch 164 includes an antenna switch or a switching switch.

[0231] Optionally, the antenna switch can switch between different antenna radiators within the same frequency band, and can also switch between different frequency bands. Alternatively, the switch can switch between different antenna radiators within the same frequency band.

[0232] In this embodiment, only five RF front-end circuits are needed to support switching between the first frequency band (e.g., N41 in HB) + the second frequency band (e.g., Wi-Fi 2.4G) and the 2T4R that supports the first frequency band (e.g., N41 in HB), as well as support for the sixth frequency band (e.g., N78 in UHB) / the fifth frequency band (e.g., Wi-Fi 5G) / the fourth frequency band (e.g., N79 in UHB) + the fourth frequency band (e.g., N79 in UHB), and support for the sixth frequency band (e.g., N78 in UHB) / the fifth frequency band (e.g., Wi-Fi 5G) / the fourth frequency band (e.g., N79 in UHB) + the sixth frequency band (e.g., N78 in UHB), thereby forming more frequency band combinations.

[0233] Of course, in other implementations, the fourth front-end circuit 150 may not be provided.

[0234] Optionally, the first radio frequency transceiver module 110 is also used to transmit and receive a first network signal in a seventh frequency band. The seventh frequency band includes the portions of LB, MB, and HB excluding the first frequency band.

[0235] Please see Figure 23The radio frequency system 100 further includes a sixth front-end circuit 170 and a tenth antenna radiator 171. One end of the sixth front-end circuit 170 is electrically connected to the first radio frequency transceiver module 110. The other end of the sixth front-end circuit 170 is electrically connected to the tenth antenna radiator 171. The tenth antenna radiator 171 is used to transmit and receive first network signals in the seventh frequency band. The seventh frequency band includes at least one of the LB band and the MB band.

[0236] The sixth front-end circuit 170 can refer to the specific structure of the fifth front-end circuit 160.

[0237] In this embodiment, for the first filter 114 integrated into the first front-end circuit 112 of Wi-Fi 2.4G, due to the presence of the sixth front-end circuit 170 and the third front-end circuit 140, it can still support, for example, 2T4R of LB, 2T4R of MB, and 2T4R of HB.

[0238] Optionally, the radio frequency system 100 may also include a controller (not shown).

[0239] The controller is electrically connected to the first switch unit 111 and the second switch unit 113.

[0240] The controller is integrated into the first radio frequency transceiver module 110; or, the controller is integrated into the second radio frequency transceiver module 120; or, it is integrated into the modem; or, it is integrated into the processor of the electronic device.

[0241] The controller is used to control the first switching unit 111 to turn on the second RF transceiver module 120 and the first front-end circuit 112 in a standby state, and to control the second switching unit 113 to turn on the first front-end circuit 112 and the second filter 115. In other words, in a standby state, the second RF transceiver module 120, the first front-end circuit 112, the second filter 115, and the second antenna radiator 117 are turned on to support a second network signal, such as Wi-Fi 2.4G. This embodiment enables electronic devices to support Wi-Fi signals.

[0242] The controller is further configured to control the first switching unit 111 to conduct the first radio frequency transceiver module 110 and the first front-end circuit 112 when the first condition is met, and to control the second switching unit 113 to conduct the first front-end circuit 112 and the first filter 114.

[0243] The first condition includes any one of the following: the received signal strength of the first network signal (specifically the first frequency band) is less than or equal to a preset strength; the download speed of the first network signal (specifically the first frequency band) is greater than or equal to a preset speed; or the coverage area of ​​the first network signal (specifically the first frequency band) is greater than or equal to a preset range.

[0244] Specifically, the first network signal is a cellular mobile signal, and the second network signal is a Wi-Fi signal.

[0245] When the received signal strength of the cellular mobile signal in the radio frequency system 100 is less than or equal to a preset strength, such as when the electronic device is in a weak field such as a basement, the received signal strength of the cellular mobile signal is weak. At this time, the controller can control the first switching unit 111 and the second switching unit 113 to switch to the cellular mobile signal in the first frequency band operated by the first front-end circuit 112. Combined with the aforementioned third front-end circuit 140, the first frequency band can also be supported, so that the working mode of the first frequency band is 2T4R, so as to increase the strength of the cellular mobile signal when the electronic device is in a weak field such as a basement.

[0246] When the download speed of the first network signal is greater than or equal to the preset speed, that is, when the electronic device is in a state of high download speed demand, the controller can control the first switching unit 111 and the second switching unit 113 to switch to the cellular mobile signal of the first front-end circuit 112 operating in the first frequency band; combined with the aforementioned third front-end circuit 140, it can also support the first frequency band, so that the working mode of the first frequency band is 2T4R, so as to increase the download speed of the electronic device.

[0247] When the coverage of the first network signal is greater than or equal to the preset range, that is, when the electronic device requires a large coverage range, the controller can control the first switching unit 111 and the second switching unit 113 to switch to the first front-end circuit 112 operating in the first frequency band of the cellular mobile signal; combined with the aforementioned third front-end circuit 140, it can also support the first frequency band, so that the working mode of the first frequency band is 2T4R, so that the electronic device can quickly find the antenna with the optimal signal and switch to the antenna with the optimal signal to work.

[0248] Optionally, the controller is also electrically connected to the third switch unit 121 and the fourth switch unit 123. The controller is also configured to control the third switch unit 121 to connect the second radio frequency transceiver module 120 and the second front-end circuit 122, and the fourth switch unit 123 to connect the second front-end circuit 122 and the second filter 115 when the first switch unit 111 connects the first radio frequency transceiver module 110 and the first front-end circuit 112.

[0249] That is, when the first front-end circuit 112 is operating in cellular mobile signal mode, the second front-end circuit 122 can be switched to operate in Wi-Fi signal mode to ensure that the electronic device can maintain support for cellular mobile signal + Wi-Fi signal.

[0250] The controller is used to control the third switching unit 121 to turn on the second RF transceiver module 120 and the second front-end circuit 122 in a standby state, and to control the fourth switching unit 123 to turn on the second front-end circuit 122 and the fourth filter 124. In other words, in a standby state, the second RF transceiver module 120, the second front-end circuit 122, the fourth filter 124, and the fourth antenna radiator 126 are turned on to support a second network signal, such as Wi-Fi 5G. This embodiment enables electronic devices to support Wi-Fi signals.

[0251] The controller is also configured to control the third switching unit 121 to turn on the first radio frequency transceiver module 110 and the second front-end circuit 122 when the second condition is met, and to control the fourth switching unit 123 to turn on the second front-end circuit 122 and the third filter 1180.

[0252] The second condition includes any one of the following: the received signal strength of the first network signal (specifically the fourth frequency band) is less than or equal to a preset strength; the download speed of the first network signal (specifically the fourth frequency band) is greater than or equal to a preset speed; or the coverage area of ​​the first network signal (specifically the fourth frequency band) is greater than or equal to a preset range.

[0253] Specifically, the first network signal is a cellular mobile signal, and the second network signal is a Wi-Fi signal.

[0254] Optionally, the controller is further configured to, when the third switching unit 121 turns on the first RF transceiver module 110 and the second front-end circuit 122, control the first switching unit 111 to turn on the second RF transceiver module 120 and the first front-end circuit 112, and the second switching unit 113 to turn on the first front-end circuit 112 and the second filter 115.

[0255] That is, when the second front-end circuit 122 is operating in cellular mobile signal mode, the first front-end circuit 112 can be switched to operate in Wi-Fi signal mode to ensure that the electronic device can maintain support for cellular mobile signal + Wi-Fi signal.

[0256] In one technology, the radio frequency system 100 includes a cellular radio frequency transceiver module, a short-range radio frequency transceiver module (such as Wi-Fi, Bluetooth, NFC, UWB, etc.), two cellular mobile radio frequency front-end circuits (L-PAMiD), an N79 radio frequency front-end circuit (LPAF), a Wi-Fi 2.4G radio frequency front-end circuit, a Wi-Fi 5G radio frequency front-end circuit, and multiple front-end path insertion losses. The front-end path insertion losses include the equivalent insertion losses formed by combiners, couplers, and transmit / receive switching antennas.

[0257] In one technology, the radio frequency system 100 includes a cellular radio frequency transceiver module, a short-range radio frequency transceiver module (such as Wi-Fi, Bluetooth, NFC, UWB, etc.), a cellular mobile L-PAMiD (for transmitting and receiving in the N41 band), a cellular mobile MMBPA (for transmitting and receiving in the N41 band), an n41 filter, an SRS switching switch, an LPAF, a Wi-Fi 2.4G radio frequency front-end circuit, a Wi-Fi 5G radio frequency front-end circuit, and multiple front-end path insertion losses. This embodiment can support n41 2Tx and n79. To improve uplink coverage and speed, the network will schedule 2Tx demand, meaning that the same frequency band supports two transmissions.

[0258] Its basic working principle is as follows:

[0259] When the network signal quality is good, in order to improve the uplink speed, or when the network quality is poor, in order to improve the uplink coverage, the entire hardware circuit needs to support 2Tx. Taking n41 2Tx as an example, this can be explained.

[0260] The cellular mobile RF transceiver module outputs two signals from the first port 101 and the fourth port 104, respectively, into two n41 transmission paths, such as two L-PAMiDs or one PAMiD and one MMBPA. Finally, the signals are transmitted through the first antenna radiator 116 and the second antenna radiator 117. When network-side equipment (e.g., a base station) uses the n79 frequency band, the cellular mobile RF transceiver module outputs one signal from the fourth port 104 into the n79 LPAF transmission path, and finally transmits it through the fourth antenna radiator 126.

[0261] When a network-side device connects to Wi-Fi and uses Wi-Fi 2.4G, the first RF transceiver module 110 enters the transmission path of the Wi-Fi 2.4G RF front-end circuit through one output, and is finally transmitted through the second antenna radiator 117. When a network-side device connects to Wi-Fi and uses Wi-Fi 5G, the second RF transceiver module 120 enters the transmission path of the Wi-Fi 5G RF front-end circuit through one output, and is finally transmitted through the fifth antenna radiator 127.

[0262] Please see Figures 14 to 17 Optionally, the second antenna radiator 117 and the fifth antenna radiator 127 can be combined to reuse antenna radiators, reducing the number of antenna radiators and saving antenna data. For example, the fourth antenna radiator 126 and the second antenna radiator 117 can be combined to reuse antenna radiators, reducing the number of antenna radiators and saving antenna data. For example, the first antenna radiator 116 and the fifth antenna radiator 127 can be combined to reuse antenna radiators, reducing the number of antenna radiators and saving antenna data. For example, the first antenna radiator 116 and the fourth antenna radiator 126 can be combined to reuse antenna radiators, reducing the number of antenna radiators and saving antenna data.

[0263] Typical radio frequency (RF) systems use many hardware components and have many hardware paths, resulting in high costs and large footprints. In contrast, mobile phone motherboards are extremely valuable; too many RF paths would take up a significant amount of space, and using too many power amplifiers would also increase costs.

[0264] Please see Figures 24 to 25 In this embodiment of the application, the RF front-end circuit of Wi-Fi 2.4G (2.412-2.484) is reused from the RF front-end circuit of n41 (2.496-2.696), and the RF front-end circuit of Wi-Fi 5G (5.15GHz~5.85GHz) is reused from the RF front-end circuit of n79 (4.4-5GHz).

[0265] The working principle of this application embodiment is as follows:

[0266] When the network signal quality is good, in order to improve the uplink speed, or when the network quality is poor, in order to improve the uplink coverage, the entire hardware circuit needs to support 2Tx. Taking n41 2Tx as an example, this can be explained.

[0267] The cellular mobile radio frequency transceiver module receives the signal from the seventh port 107 and enters the transmission path n41, such as the L-PAMiD chip or MMBPA chip, and finally transmits it out through the seventh antenna radiator 141.

[0268] The signal from the first port 101 of the cellular mobile radio frequency transceiver module is switched to the input of the n41 radio frequency front-end circuit by the first switching unit 111. After passing through the radio frequency front-end circuit, it is switched to the n41 filter by the second switching unit 113 at the output end, and finally transmitted through the first antenna radiator 116.

[0269] The signal from the second port 102 is switched to the input of the Wi-Fi 2.4G RF front-end circuit by the first switching unit 111. After passing through the RF front-end circuit, it is switched to the Wi-Fi 2.4G filter by the second switching unit 113 at the output end, and finally transmitted through the second antenna radiator 117.

[0270] When the network-side device calls the n79 frequency band, the output signal of the fourth port 104 of the cellular mobile radio frequency transceiver module is switched to the input of the n79 radio frequency front-end circuit through the third switching unit 121. After passing through the radio frequency front-end circuit, it is switched to the n79 filter through the fourth switching unit 123 at the output end, and finally transmitted through the fourth antenna radiator 126.

[0271] When the network-side device connects to Wi-Fi and invokes Wi-Fi 5G, the output of the short-range RF transceiver module is switched to the transmission path of the Wi-Fi 5G RF front-end circuit through the third switching unit 121, and finally transmitted through the fifth antenna radiator 127.

[0272] The entire RF front-end solution described above can be achieved using only 3 power amplifiers, resulting in a smaller overall area and lower cost.

[0273] Please see Figure 26 In this embodiment, the function of n41 is output from a Wi-Fi 2.4G RF front-end circuit, and then n41 is multiplexed through Wi-Fi 2.4G. The function of n79 is output from a Wi-Fi 5G RF front-end circuit, and then n79 is multiplexed through Wi-Fi 5G. Alternatively, the function of Wi-Fi 2.4G is output from an L-PAMiD, and then Wi-Fi 2.4G is multiplexed through L-PAMiD. The function of Wi-Fi 5G is output from an LPAF, and then Wi-Fi 5G is multiplexed through LPAF. The functions of the original solution are achieved using a single L-PAMiD or MMBPA + Wi-Fi 2.4G + Wi-Fi 5G RF front-end circuit, greatly saving the area of ​​the mobile phone motherboard. Eliminating one n41 L-PAMiD and one n79 LAPF significantly reduces the application cost of the devices and also reduces the device area.

[0274] Furthermore, the sixth port 106 of the first RF transceiver module 110 is electrically connected to the third switching unit 121, and the second front-end circuit 122 is also electrically connected to the sixth filter 128 and the sixth antenna radiator 129 of N78 through the fourth switching unit 123. The n79 LPAF shares a package with the n78 LPAF and is integrated into a single chip. For the second front-end circuit 122, which is a Wi-Fi 5G RF front-end circuit, the frequency response BW2 of the second power amplifier PA2 is 3.3GHz-5.85GHz.

[0275] The RF system 100 also includes a fourth front-end circuit 150 for supporting N78. Since both n41 and n78 require support for 2Tx, this embodiment uses a total of four power amplifiers (PAs). In conventional solutions, a total of seven PAs are needed, while this embodiment only requires four PAs to achieve the functionality of the original solution.

[0276] Please see Figure 27 and Figure 28 Of course, the first front-end circuit 112 can also be a cellular mobile radio frequency front-end circuit, integrating the Wi-Fi 2.4G filter with the first front-end circuit 112 into a single chip. Furthermore, the first antenna radiator 116 and the second antenna radiator 117 can be the same antenna radiator, and the first filter 114 and the second filter 115 can be switched by the first antenna switch 118 to be respectively connected to the same antenna radiator.

[0277] Please see Figure 27 and Figure 28 Of course, the second front-end circuit 122 can also be a cellular mobile (N79) radio frequency front-end circuit, integrating the Wi-Fi 5G filter with the second front-end circuit 122 into a single chip. Furthermore, the fourth antenna radiator 126 and the fifth antenna radiator 127 can be the same antenna radiator, and the fourth filter 124 and the fifth filter 125 can be switched by the second antenna switch 182 to be respectively connected to the same antenna radiator.

[0278] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application, and such improvements and refinements are also considered to be within the protection scope of this application.

Claims

1. A radio frequency system, characterized in that, include: A first radio frequency transceiver module, wherein the first radio frequency transceiver module is used to transmit and receive a first network signal in a first frequency band; The second radio frequency transceiver module is used to transmit and receive second network signals in the second frequency band; The first switching unit has two selection terminals that are electrically connected to the first radio frequency transceiver module and the second radio frequency transceiver module, respectively. A first front-end circuit, one end of which is electrically connected to the fixed end of the first switching unit; The second switching unit has one end electrically connected to the other end of the first front-end circuit; A first filter, one end of which is electrically connected to the first selection terminal of the second switching unit, is used to allow the first network signal of the first frequency band to pass through; The second filter, one end of which is electrically connected to the second selection terminal of the second switching unit, is used to allow the second network signal of the second frequency band to pass through; The first antenna radiator is electrically connected to the other end of the first filter and is used to transmit and receive the first network signal in the first frequency band. and The second antenna radiator is electrically connected to the other end of the second filter and is used to transmit and receive the second network signal in the second frequency band.

2. The radio frequency system as described in claim 1, characterized in that, The first front-end circuit includes a first power amplifier, the frequency response range of which covers the first frequency band and the second frequency band; the first power amplifier is a power amplifier used to amplify the first network signal; or, the first power amplifier is a power amplifier used to amplify the second network signal.

3. The radio frequency system as described in claim 1, characterized in that, The difference between the center frequency of the first frequency band and the center frequency of the second frequency band is less than or equal to the first preset frequency band.

4. The radio frequency system as described in claim 3, characterized in that, The first network signal includes cellular mobile signals, and the second network signal includes short-range signals; the first frequency band includes at least one of the HB frequency bands, and the second frequency band includes the Wi-Fi 2.4G frequency band; Alternatively, the first frequency band may include at least one of the UHB frequency bands, and the second frequency band may include the Wi-Fi 5G frequency band.

5. The radio frequency system as described in claim 1, characterized in that, The first antenna radiator and the second antenna radiator are the same radiator and are referred to as the first radiator. The radio frequency system also includes a first antenna switch. The selection terminal of the first antenna switch is connected to the first filter and the second filter, respectively. The fixed terminal of the first antenna switch is electrically connected to the first radiator.

6. The radio frequency system as described in claim 1, characterized in that, The first radio frequency transceiver module is also used to transmit and receive the first network signal in the third frequency band; The radio frequency system further includes a third filter and a third antenna radiator. One end of the third filter is electrically connected to the third selection terminal of the second switching unit. The third filter is used to allow the first network signal of the third frequency band to pass through. The third antenna radiator is electrically connected to the other end of the third filter, and the third antenna radiator is used to transmit and receive the first network signal of the third frequency band.

7. The radio frequency system as claimed in claim 1, characterized in that, The first radio frequency transceiver module is also used to transmit and receive a first network signal in the fourth frequency band, and the second radio frequency transceiver module is also used to transmit and receive a second network signal in the fifth frequency band; The radio frequency system also includes: The third switching unit has two selection terminals that are electrically connected to the first RF transceiver module and the second RF transceiver module, respectively. The second front-end circuit, one end of which is electrically connected to the fixed terminal of the third switching unit; The fourth switching unit, one end of which is electrically connected to the other end of the second front-end circuit; A fourth filter, one end of which is electrically connected to the first selection terminal of the fourth switching unit, is used to allow the first network signal of the fourth frequency band to pass through; The fifth filter, one end of which is electrically connected to the second selection terminal of the fourth switching unit, is used to allow the second network signal of the fifth frequency band to pass through; A fourth antenna radiator is electrically connected to the other end of the fourth filter, and the fourth antenna radiator is used to transmit and receive the first network signal of the fourth frequency band. The fifth antenna radiator is electrically connected to the other end of the fifth filter and is used to transmit and receive the second network signal of the fifth frequency band.

8. The radio frequency system as described in claim 7, characterized in that, The second front-end circuit includes a second power amplifier, the frequency response range of which covers the fourth frequency band and the fifth frequency band; the second power amplifier is a power amplifier for amplifying the first network signal; or, the second power amplifier is a power amplifier for amplifying the second network signal.

9. The radio frequency system as described in claim 7, characterized in that, The first network signal includes cellular mobile signals, and the second network signal includes short-range signals; the first frequency band includes at least one of the HB frequency bands, and the second frequency band includes the Wi-Fi 2.4G frequency band; the fourth frequency band includes at least one of the UHB frequency bands, and the fifth frequency band includes the Wi-Fi 5G frequency band.

10. The radio frequency system as claimed in claim 7, characterized in that, The first radio frequency transceiver module is also used to transmit and receive the first network signal in the sixth frequency band, and the radio frequency system further includes: A sixth filter, one end of which is electrically connected to the third selection terminal of the fourth switching unit, is used to allow the first network signal of the sixth frequency band to pass through; The sixth antenna radiator is electrically connected to the other end of the sixth filter and is used to transmit and receive the first network signal of the sixth frequency band.

11. The radio frequency system as claimed in claim 7, characterized in that, The first front-end circuit is integrated with at least one of the first switching unit, the second switching unit, the first filter, and the second filter into a single chip; or, the first front-end circuit, the first switching unit, the second switching unit, the first filter, and the second filter are independent devices; and / or, The second front-end circuit is integrated with at least one of the third switching unit, the fourth switching unit, the fourth filter, and the fifth filter into a single chip; or, the second front-end circuit is an independent device from the third switching unit, the fourth switching unit, the fourth filter, and the fifth filter.

12. The radio frequency system as claimed in claim 1, characterized in that, The radio frequency system further includes a third front-end circuit and a seventh antenna radiator. One end of the third front-end circuit is electrically connected to the first radio frequency transceiver module, and the other end of the third front-end circuit is electrically connected to the seventh antenna radiator. The third front-end circuit is used at least to transmit and receive the first network signal of the first frequency band.

13. The radio frequency system as described in claim 12, characterized in that, The third front-end circuit includes a third power amplifier, a third frequency selection switch, a third front-end filter, and a third front-end switch connected in sequence. The third power amplifier and at least one of the third frequency selection switch, the third front-end filter, and the third front-end switch are integrated into a single chip. The third front-end switch includes an antenna switch or a switching switch.

14. The radio frequency system as claimed in claim 7, characterized in that, The radio frequency system further includes a fourth front-end circuit and an eighth antenna radiator. One end of the fourth front-end circuit is electrically connected to the first radio frequency transceiver module, and the other end of the fourth front-end circuit is electrically connected to the eighth antenna radiator. The fourth front-end circuit is used at least to transmit and receive the first network signal of the fourth frequency band.

15. The radio frequency system as claimed in claim 10, characterized in that, The radio frequency system further includes a fifth front-end circuit and a ninth antenna radiator. One end of the fifth front-end circuit is electrically connected to the first radio frequency transceiver module, and the other end of the fifth front-end circuit is electrically connected to the ninth antenna radiator. The fifth front-end circuit is used at least to transmit and receive the first network signal of the sixth frequency band.

16. The radio frequency system as claimed in claim 1, characterized in that, The first radio frequency transceiver module is also used to transmit and receive the first network signal in the seventh frequency band; The radio frequency system further includes a sixth front-end circuit and a tenth antenna radiator. One end of the sixth front-end circuit is electrically connected to the first radio frequency transceiver module, and the other end of the sixth front-end circuit is electrically connected to the tenth antenna radiator. The tenth antenna radiator is used to transmit and receive the first network signal of the seventh frequency band. The seventh frequency band includes at least one of the LB band and the MB band.

17. The radio frequency system as claimed in claim 7, characterized in that, The fourth antenna radiator and the fifth antenna radiator are the same radiator and are referred to as the second radiator; the radio frequency system also includes a second antenna switch, the selection terminal of the second antenna switch is connected to the fourth filter and the fifth filter respectively, and the fixed terminal of the second antenna switch is electrically connected to the second radiator.

18. The radio frequency system as claimed in claim 7, characterized in that, The second antenna radiator and the fifth antenna radiator are the same radiator and are referred to as the first sub-radiator; the radio frequency system further includes a first combiner, one side of which is electrically connected to the second filter and the fifth filter, and the other end of which is electrically connected to the first sub-radiator; and / or, The second antenna radiator and the fourth antenna radiator are the same radiator and are referred to as the second sub-radiator; the radio frequency system further includes a second combiner, one side of which is electrically connected to the second filter and the fourth filter, and the other end of which is electrically connected to the second sub-radiator; and / or, The first antenna radiator and the fifth antenna radiator are the same radiator and are referred to as the third sub-radiator; the radio frequency system further includes a third combiner, one side of which is electrically connected to the first filter and the fifth filter, and the other end of which is electrically connected to the third sub-radiator; and / or The first antenna radiator and the fourth antenna radiator are the same radiator and are referred to as the fourth sub-radiator; the radio frequency system also includes a fourth combiner, one side of which is electrically connected to the first filter and the fourth filter, and the other end of which is electrically connected to the fourth sub-radiator.

19. The radio frequency system as claimed in claim 7, characterized in that, The radio frequency system also includes: The controller is electrically connected to the first switching unit and the second switching unit. The controller is used to control the first switching unit to conduct the second radio frequency transceiver module and the first front-end circuit in a stationary state, and to control the second antenna unit to conduct the first front-end circuit and the second filter. The controller is further configured to control the first switching unit to connect the first radio frequency transceiver module and the first front-end circuit when a first condition is met, and to control the second switching unit to connect the first front-end circuit and the first filter; the first condition includes any one of the following: the received signal strength of the first network signal is less than or equal to a preset strength, the download speed of the first network signal is greater than or equal to a preset speed, and the coverage area of ​​the first network signal is greater than or equal to a preset range.

20. The radio frequency system as claimed in claim 19, characterized in that, The controller is also electrically connected to the third switch unit and the fourth switch unit. The controller is also used to control the third switch unit to connect the second radio frequency transceiver module and the second front-end circuit, and the fourth switch unit to connect the second front-end circuit and the second filter, when the first switch unit connects the first radio frequency transceiver module and the first front-end circuit.

21. An electronic device, characterized in that, The electronic device includes the radio frequency system as described in any one of claims 1 to 20.

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