Radio frequency module, control method and electronic device

Abstract

The application provides a radio frequency module, a control method and an electronic device. The electronic device includes a frame, the frame includes a first antenna, a second antenna and a third antenna, the first antenna and the second antenna do not work at the same time, and the first antenna and the third antenna work at the same time. The radio frequency module includes a Bluetooth module, a satellite communication module, a cellular module, a first switch and a second switch. The satellite communication module is connected with the first antenna. The Bluetooth module is connected with the second antenna through the first switch, and the Bluetooth module is also connected with the third antenna through the first switch and the second switch. The cellular module is connected with the third antenna. The first switch is used to connect the Bluetooth module and the second antenna or the second switch. The second switch is used to connect the third antenna and the cellular module or the first switch. The application makes the isolation degree of the satellite communication antenna and the Bluetooth antenna high, and the coexistence interference small, so that the performance of the satellite communication and the Bluetooth coexistence of the electronic device can meet the requirements of the user, and the experience of the user is improved.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a radio frequency module, control method, and electronic device. Background Technology

[0002] Currently, electronic devices can use satellite communication for emergency communication in areas without communication network coverage (e.g., uninhabited areas, border regions, deserts, mountains, and oceans). In scenarios where electronic devices use satellite communication, to avoid interference with the antenna from the user's head during voice calls, users need to establish a connection with the electronic device via Bluetooth headset before using the headset for voice communication. Therefore, ensuring that the communication performance of electronic devices meets user needs when satellite communication and Bluetooth coexist has become a pressing issue. Summary of the Invention

[0003] In view of the above, this application provides a radio frequency module, control method and electronic device, which can ensure that the performance of the electronic device meets the user's requirements under the coexistence of satellite communication and Bluetooth, and improve the user experience.

[0004] The first aspect of this application provides a radio frequency (RF) module for an electronic device. The electronic device includes a frame, and the frame includes a first antenna, a second antenna, and a third antenna. The first and second antennas do not operate simultaneously, but the first and third antennas operate simultaneously. The RF module includes a Bluetooth module, a satellite communication module, a cellular module, a first switch, and a second switch. The satellite communication module is connected to the first antenna and is used to receive and transmit satellite communication signals through the first antenna. The Bluetooth module is connected to the second antenna through the first switch, and also to the third antenna through the first and second switches. The Bluetooth module receives and transmits Bluetooth signals through either the second or third antenna. The cellular module is connected to the third antenna and is used to receive and transmit cellular communication signals through the third antenna. The first switch is used to connect the Bluetooth module to the second antenna or the second switch. The second switch is used to connect the third antenna to the cellular module or the first switch. By using the RF module of this application, the cellular antenna at the bottom of the frame is reused as a Bluetooth antenna, resulting in high isolation between the satellite communication antenna and the Bluetooth antenna, and low coexistence interference. This ensures that the performance of the electronic device under the coexistence of satellite communication and Bluetooth meets the user's requirements, improving the user experience.

[0005] As an optional implementation, the first switch connects the Bluetooth module and the second switch when the satellite communication module is operating, and the second switch connects the third antenna and the first switch when the satellite communication module is operating. Based on this design, the cellular antenna at the bottom of the bezel can be reused as a Bluetooth antenna, ensuring the performance of the electronic device while satellite communication and Bluetooth coexist, thus improving the user experience.

[0006] As an optional implementation, the first switch connects the Bluetooth module and the second antenna when the satellite communication module is not in operation, and the second switch connects the third antenna and the cellular module when the satellite communication module is not in operation. Therefore, when the satellite communication module is not in operation, the Bluetooth module can transmit and receive Bluetooth signals via the second antenna, and the cellular module can transmit and receive cellular signals via the third antenna, thus enabling normal communication functions of the electronic device and meeting the user's communication needs.

[0007] As an optional implementation, the first switch includes a first connection point, a second connection point, and a third connection point. The first connection point of the first switch is connected to the Bluetooth module, the second connection point of the first switch is connected to the second antenna, and the third connection point of the first switch is connected to the second switch.

[0008] As an optional implementation, the second switch includes a first connection point, a second connection point, and a third connection point. The first connection point of the second switch is connected to the third antenna, the second connection point of the second switch is connected to the cellular module, and the third connection point of the second switch is connected to the third connection point of the first switch.

[0009] As an optional implementation, when the satellite communication module is working, the first connection point of the first switch is connected to the third connection point of the first switch, and the first connection point of the second switch is connected to the third connection point of the second switch. Based on this design, the cellular antenna at the bottom of the bezel can be reused as a Bluetooth antenna, ensuring the performance of the electronic device while satellite communication and Bluetooth coexist, and improving the user experience.

[0010] As an optional implementation, when the satellite communication module is not working, the first connection point of the first switch is connected to the second connection point of the first switch, and the first connection point of the second switch is connected to the second connection point of the second switch. In this application, when the satellite communication module is not working, the Bluetooth module can transmit and receive Bluetooth signals through the second antenna, and the cellular module can transmit and receive cellular signals through the third antenna, thereby realizing the normal communication function of the electronic device and meeting the user's communication needs.

[0011] A second aspect of this application also provides a control method for an RF module. The RF module includes a Bluetooth module, a satellite communication module, a cellular module, a first switch, and a second switch. The satellite communication module is connected to a first antenna and is used to receive and transmit satellite communication signals through the first antenna. The Bluetooth module is connected to the second antenna through the first switch and is also connected to the third antenna through the first and second switches. The cellular module is connected to the third antenna. The first and second antennas do not operate simultaneously; the first and third antennas operate simultaneously. The control method includes: when the satellite communication module is operating, controlling the first switch to connect the Bluetooth module to the second switch and controlling the second switch to connect the third antenna to the first switch; when the satellite communication module is not operating, controlling the first switch to connect the Bluetooth module to the second antenna and controlling the second switch to connect the third antenna to the cellular module. This RF module control method, by multiplexing the cellular antenna at the bottom of the frame as a Bluetooth antenna, achieves high isolation between the satellite communication antenna and the Bluetooth antenna, resulting in low coexistence interference. This ensures that the performance of the electronic device under the coexistence of satellite communication and Bluetooth meets the user's requirements, improving the user experience.

[0012] As an optional implementation, the first switch includes a first connection point, a second connection point, and a third connection point. The first connection point of the first switch is connected to the Bluetooth module, the second connection point of the first switch is connected to the second antenna, and the third connection point of the first switch is connected to the second switch. The second switch also includes a first connection point, a second connection point, and a third connection point. The first connection point of the second switch is connected to the third antenna, the second connection point of the second switch is connected to the cellular module, and the third connection point of the second switch is connected to the third connection point of the first switch. The control method further includes: when the satellite communication module is working, controlling the first connection point of the first switch to connect to the third connection point of the first switch, and controlling the first connection point of the second switch to connect to the third connection point of the second switch. Based on this design, the cellular antenna at the bottom of the bezel can be reused as a Bluetooth antenna, ensuring the performance of the electronic device under the coexistence of satellite communication and Bluetooth, and improving the user experience.

[0013] As an optional implementation, when the satellite communication module is not working, the first connection point of the first switch is connected to the second connection point of the first switch, and the first connection point of the second switch is connected to the second connection point of the second switch. In this application, when the satellite communication module is not working, the Bluetooth module can transmit and receive Bluetooth signals through the second antenna, and the cellular module can transmit and receive cellular signals through the third antenna, thereby realizing the normal communication function of the electronic device and meeting the user's communication needs.

[0014] A third aspect of this application also provides an electronic device, the electronic device including a frame, a control module and a radio frequency module as described above, the frame including a first antenna, a second antenna and a third antenna, the first antenna and the second antenna not operating simultaneously, the first antenna and the third antenna operating simultaneously, the control module being used to control the first switch and the second switch.

[0015] By employing the RF module, control method, and electronic device of this application, the cellular antenna at the bottom of the frame is reused as a Bluetooth antenna, resulting in high isolation between the satellite communication antenna and the Bluetooth antenna and low coexistence interference. This ensures that the performance of the electronic device under the coexistence of satellite communication and Bluetooth meets the user's requirements and improves the user experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

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

[0018] Figure 2 for Figure 1 A schematic diagram of the middle frame structure.

[0019] Figure 3 This is a partial structural diagram of the border provided for one embodiment of this application.

[0020] Figure 4 This is another schematic diagram of an electronic device in one embodiment of this application.

[0021] Figure 5 This is another schematic diagram of an electronic device in one embodiment of this application.

[0022] Figure 6 This is another schematic diagram of an electronic device in one embodiment of this application.

[0023] Figure 7 This is another schematic diagram of an electronic device in one embodiment of this application.

[0024] Figure 8 This is a flowchart illustrating the control method of the radio frequency module in one embodiment of this application. Detailed Implementation

[0025] In the embodiments of this application, terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or order. For example, "first application" and "second application" are used to distinguish different applications, not to describe a specific order of applications. Features specified as "first" or "second" may explicitly or implicitly include one or more of those features.

[0026] Typically, users can use the satellite communication function of their electronic devices for emergency communication in areas without network coverage. In scenarios where electronic devices use satellite communication, to avoid interference with the antenna from the user's head during voice calls, users need to establish a connection with the electronic device via Bluetooth headset before using the headset for voice communication. Therefore, ensuring the communication performance of electronic devices when satellite communication and Bluetooth coexist has become a pressing issue that needs to be addressed.

[0027] To address the problems in the above scenarios, this application provides a radio frequency module, control method, and electronic device that can ensure the performance of the electronic device meets the user's requirements when satellite communication and Bluetooth coexist, thereby improving the user experience.

[0028] The radio frequency module, control method, and electronic equipment of this application will be described in detail below with reference to the accompanying drawings.

[0029] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of an electronic device 100 provided in an embodiment of this application. The electronic device 100 can be an electronic product with communication functions, such as a mobile phone, tablet computer, wearable device, etc. This embodiment of the application uses a mobile phone as an example for illustration.

[0030] In this application, the electronic device may support at least one of WiFi (wireless communication technology), cellular mobile communication, Bluetooth, and satellite communication functions.

[0031] For example, such as Figure 1 As shown, the electronic device 100 may include a radio frequency module 10, a display screen 20, a back cover 30, and a frame 40. The back cover 30 and the display screen 20 are fixed to the two sides of the frame 40 opposite to each other, and the back cover 30, the display screen 20, and the frame 40 together enclose the entire internal cavity of the electronic device 100.

[0032] For example, the radio frequency (RF) module 10 is installed within the internal cavity of the device. The RF module 10 can be electrically connected to the frame 40. The RF module 10 can be used to process communication signals and transmit them to an antenna for transmission, or to process communication signals received by the antenna and transmit them to other modules for further processing, thereby enabling the communication function of the electronic device 100. The RF module 10 may include structures such as chips and circuit boards. Understandably, the RF module 10 can also be electrically connected to antennas of other structures to enable the communication function of the electronic device 100.

[0033] The display screen 20 is used to display images, and it can also integrate touch functionality to enable human-computer interaction. The back cover 30 is used to protect the internal structure of the electronic device 100. The back cover 30 can be made of metal, non-metal, or a composite material of metal and non-metal.

[0034] For example, the bottom of the frame 40 may be provided with a through hole 50, through which external devices of the electronic device 100 can be connected to the electronic device 100, such as electrical connection and communication connection.

[0035] For example, the electronic device 100 may also include a camera hole 52 and a speaker hole 54. The camera hole 52 and the speaker hole 54 may be located on the top of the display screen 20. The camera hole 52 may be used to collect optical information from outside the electronic device 100, and the speaker hole 54 may be used to transmit acoustic information to outside the electronic device 100.

[0036] It is understood that in other embodiments, the electronic device 100 may also include one or more of the following components, such as a processor, circuit board, memory, power supply component, input / output circuit, audio component (e.g., microphone and speaker), multimedia component (e.g., front-facing camera and / or rear-facing camera), sensor component (e.g., proximity sensor, distance sensor, ambient light sensor, accelerometer, gyroscope, magnetic sensor, pressure sensor and / or temperature sensor), etc., which will not be elaborated here.

[0037] The electronic device 100 of this application can have functions such as WiFi, cellular mobile communication, and Bluetooth that require communication system support, enabling the electronic device 100 to perform communication functions in environments supported by the communication system. In addition, the electronic device 100 also integrates satellite communication functions, enabling the electronic device 100 to perform communication functions in scenarios without cellular network coverage, thus making the electronic device 100 suitable for diverse application environments and highly adaptable.

[0038] Please see Figure 2 , Figure 2 yes Figure 1 The diagram shows the structure of border 40.

[0039] For example, at least one slit may be provided on the frame 40. In this embodiment, eight slits are provided on the frame 40, namely, the first slit 401, the second slit 402, the third slit 403, the fourth slit 404, the fifth slit 405, the sixth slit 406, the seventh slit 407 and the eighth slit 408.

[0040] It is understood that in this embodiment, the first to eighth gaps are all continuous and separate the frame 40. The first to eighth gaps together divide the frame 40 into multiple metal segments. Each pair of metal segments is separated by a gap. The multiple metal segments can form multiple antennas of the electronic device 100 for transmitting and / or receiving communication signals. Different metal segments can form different antennas. One antenna can cover one or more communication frequency bands. The radio frequency module 10 of this application can be connected to multiple antennas to realize the communication function of the electronic device 100.

[0041] For example, the first gap 401 and the second gap 402 are formed on the top metal frame of the electronic device 100. The third gap 403 and the fourth gap 404 are formed on the side metal frame of the electronic device 100. The fifth gap 405, the sixth gap 406 and the seventh gap 407 are formed on the other side metal frame of the electronic device 100. The eighth gap 408 is formed on the bottom metal frame of the electronic device 100.

[0042] It is understood that multiple antennas may include antennas one through six. In a specific implementation, the metal segment between the first slot 401 and the second slot 402 is antenna 41, which is the top satellite communication antenna of the electronic device 100. The metal segment between the first slot 401 and the third slot 403 is antenna 42, which is the top Bluetooth antenna of the electronic device 100. The metal segment between the second slot 402 and the fifth slot 405 is antenna 43, which is the top cellular antenna of the electronic device 100. The metal segment between the third slot 403 and the fourth slot 404 is antenna 45, which is the side cellular antenna of the electronic device 100. The metal segment between the fifth slot 405 and the sixth slot 406 is antenna 46, which is the side cellular antenna of the electronic device 100. The metal segment between the seventh slot 407 and the eighth slot 408 is antenna 44, which is the bottom cellular antenna of the electronic device 100.

[0043] In other words, antenna 41 of this application is located at the top of frame 40, antenna 2 is located at the upper left corner of frame 40, antenna 44 is located at the lower right corner of frame 40, and antennas 45 and 46 are located on the side of frame 40.

[0044] Satellite communication refers to communication between two or more ground stations that uses artificial satellites as relay stations to forward or reflect radio signals.

[0045] WiFi and Bluetooth are wireless networking technologies that enable wireless communication within a certain range.

[0046] Cellular mobile communication is a wireless communication technology that uses a mesh structure to achieve large-area wireless communication. For example, cellular mobile communication can use various network types, such as Global System for Mobile Communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), and Long Term Evolution (LTE). Cellular mobile communication can also use various communication frequency bands, such as N41, N78, and N79. In the embodiments of this application, the electronic device 100 can use N41 as the operating frequency band for cellular mobile communication.

[0047] For example, in this application, antenna 41 is a satellite communication antenna, and electronic device 100 can transmit and receive satellite communication signals through antenna 41. Antenna 42 is a Bluetooth antenna, and electronic device 100 can transmit and receive Bluetooth signals through antenna 42. Antennas 43, 45, 46, and 44 are cellular antennas. Electronic device 100 can achieve cellular network communication through antennas 43, 45, 46, and 44. The frequency information is shown in Table 1 below.

[0048] Table 1

[0049] Communication type model Frequency range (MHz) satellite communications Up 1980～2010 Bluetooth 2.4G 2402～2482 honeycomb N41 2496～2690 Satellite access Downward 2170～2200

[0050] Please see Figure 3 , Figure 3 This is a partial structural schematic diagram of an electronic device 100 provided in one embodiment of this application. For example, antenna 42 may include a feed point 421, and antenna 43 may include a feed point 431. Feed point 421 may be disposed on antenna 42, and feed point 431 may be disposed on antenna 43.

[0051] For example, such as Figure 3 As shown, feed point 421 can be connected to system ground via switch S1, and feed point 431 can be connected to system ground via switch S2.

[0052] It is understandable that in one possible application scenario, when antenna 41 is working, antennas 42 and 43 are short-circuited, meaning they are not working. For example, when antenna 41 (i.e., the satellite communication antenna) is working, switches S1 and S2 are in the ON state, causing antenna 42 (i.e., the Bluetooth antenna) and antenna 43 (i.e., the cellular antenna) to be short-circuited to ground. This ensures that current is not excessively coupled to antennas 42 and 43, thus guaranteeing the gain of the satellite communication antenna.

[0053] In this embodiment, as Figure 3 As shown, switches S3 and S4 can be used to adjust the operating frequency of antenna 41. For example, switch S3 is used to optimize the performance of antenna 41 at the transmitting frequency. Switch S4 is used to optimize the performance of antenna 41 at the receiving frequency.

[0054] Please see Figure 4 , Figure 4 This is a partial structural schematic diagram of an electronic device 100 provided in one embodiment of this application.

[0055] The electronic device 100 of this application, such as a mobile phone / PAD terminal, supports communication functions such as satellite communication, cellular Band 41, and Bluetooth. The electronic device 100 includes modules, transceiver channels, and antennas corresponding to different communication functions. Specifically, for example... Figure 4 As shown, the satellite communication function corresponds to the satellite communication module, satellite communication path, and satellite communication antenna; the cellular Band41 function corresponds to the cellular module, cellular N41 path, and Band41 antenna; and the Bluetooth function corresponds to the Bluetooth module, Bluetooth path, and Bluetooth antenna.

[0056] For example, the electronic device 100 includes a radio frequency module 10 and multiple antennas. The multiple antennas may include antennas 41, 42, 43, 44, 45, and 46; that is, the frame 40 may include antennas 41, 42, 43, 44, 45, and 46. The radio frequency module 10 can be connected to antennas 41, 42, 43, 44, 45, and 46 to realize the communication function of the electronic device 100.

[0057] Antenna 41 can be used to receive and transmit satellite communication signals, as well as to transmit signals for satellite communication functions. Antenna 42 can transmit signals for Bluetooth functionality. Antennas 43, 44, 45, and 46 can transmit signals for cellular communication functions.

[0058] The radio frequency module 10 may include a satellite communication module 11, a cellular module 12, a Bluetooth module 13, a satellite uplink path 14, a satellite downlink path 15, a cellular transmit path 16, a cellular receive path 17, a cellular receive path 18, a cellular receive path 19, a cellular receive path 26, and a Bluetooth path 27.

[0059] For example, antenna 41 is connected to satellite communication module 11, which can receive or transmit satellite communication signals. Antenna 42 is connected to Bluetooth module 13, which can transmit and receive Bluetooth signals. Antennas 43, 44, 45, and 46 are connected to cellular module 12, which can receive or transmit cellular signals. Alternatively, in other possible application scenarios, cellular module 12 can also transmit and receive cellular mobile signals using antennas 43, 44, 45, and 46, and can switch between different antennas to achieve cellular communication. Cellular module 12 can select an antenna with better performance for cellular communication. It is understood that in this embodiment, satellite communication module 11 can be a satellite communication chip, cellular module 12 can be a cellular chip, and Bluetooth module 13 can be a Bluetooth chip.

[0060] Bluetooth path 27 includes filter 271, which is connected between the transceiver TRX of Bluetooth module 13 and antenna 42. Filter 271 is used to filter the Bluetooth signal output by the transceiver TRX of Bluetooth module 13, or to filter the Bluetooth signal received by antenna 42 or antenna 44.

[0061] The satellite uplink path 14 is used to transmit the satellite communication signal emitted by the satellite communication module 11 to the antenna 41, and then transmit it out via the antenna 41. The satellite downlink path 15 is used to transmit the satellite communication signal received by the antenna 41 to the satellite communication module 11 for subsequent processing. Specifically, the RF module 10 may also include a switch 21 for enabling time-division multiplexing of the satellite communication module 11. For example, the switch 21 may be a single-pole double-throw switch. For instance, the switch 21 includes a first connection point 211, a second connection point 212, and a third connection point 213. The first connection point 211, the second connection point 212, and the third connection point 213 are respectively connected to the antenna 41, the satellite uplink path 14, and the satellite downlink path 15. When the first connection point 211 and the second connection point 212 are connected, the antenna 41 is connected to the satellite uplink path 14, and the satellite communication module 11 can transmit satellite signals through the antenna 41. When the first connection point 211 and the third connection point 213 are connected, the antenna 41 is connected to the satellite downlink path 15, and the satellite communication module 11 can receive satellite signals through the antenna 41.

[0062] For example, the satellite uplink path 14 may include a filter 141 and a power amplifier (PA) 142. The filter 141 is connected between the transmitter (TX) of the satellite communication module 11 and the input of the power amplifier 142, and the output of the power amplifier 142 is connected to the second connection point 212 of the switch 21. The filter 141 is used to filter out noise in the satellite communication signal emitted by the satellite communication module 11, and the power amplifier 142 is used to amplify the power of the satellite communication signal under a given distortion rate.

[0063] The satellite downlink path 15 may include a filter 151, a power amplifier 152, and a filter 153. The filter 151 is connected between the receiver RX of the satellite communication module 11 and the output of the power amplifier 152. The filter 153 is connected between the input of the power amplifier 152 and the third connection point 213 of the switch 21. The filter 153 is used to filter the satellite communication signal received by the antenna 41, and the power amplifier 152 is used to amplify the filtered satellite communication signal before transmitting it to the filter 151 and the receiver RX of the satellite communication module 11.

[0064] The radio frequency module 10 may also include switches 22, 23, 24, and 25. For example, switch 22 may be a single-pole double-throw switch, and switches 23, 24, and 25 may all be double-pole double-throw switches.

[0065] The switch 22 includes a first connection point 221, a second connection point 222 and a third connection point 223.

[0066] The switch 23 includes a first moving contact 231, a second moving contact 232, a first stationary contact 233, and a second stationary contact 234.

[0067] The switch 24 includes a first moving contact 241, a second moving contact 242, a first stationary contact 243, and a second stationary contact 244.

[0068] The switch 25 includes a first moving contact 251, a second moving contact 252, a first stationary contact 253, and a second stationary contact 254.

[0069] Cellular transmission path 16 includes a power amplifier 161. The input terminal of power amplifier 161 is connected to the transmitter TX of cellular module 12, and the output terminal of power amplifier 161 is connected to the second connection point 222 of switch 22. Filter 162 is connected between the first connection point 221 of switch 22 and the first moving contact 231 of switch 23. Power amplifier 161 amplifies the cellular signal output from transmitter TX of cellular module 12 and outputs it to filter 162 via switch 22. Filter 162 filters the amplified cellular signal and transmits it to antenna 43 via switch 23.

[0070] Cellular receiving path 17 includes power amplifier 171. The output of power amplifier 171 is connected to the receiver RX1 of cellular module 12, and the input of power amplifier 171 is connected to the third connection point 223 of switch 22. Filter 162 can also be used to filter the cellular signal received by antenna 43 before transmitting it to power amplifier 171 via switch 22. Power amplifier 171 amplifies the cellular signal before transmitting it to receiver RX1 of cellular module 12.

[0071] Cellular receiving path 18 includes a power amplifier 181 and a filter 182. The output of power amplifier 181 is connected to the receiver RX2 of cellular module 12, and filter 182 is connected between the input of power amplifier 181 and the second moving contact 232 of switch 23. Cellular signals received by antenna 43 can be transmitted to cellular receiving path 18 through switch 23, and cellular signals received by antenna 46 can be transmitted to cellular receiving path 18 through switches 24 and 23. Filter 182 can filter the received cellular signals before transmitting them to power amplifier 181, which amplifies the cellular signals before transmitting them to receiver RX2 of cellular module 12.

[0072] Cellular receiving path 19 includes a power amplifier 191 and a filter 192. The output of power amplifier 191 is connected to the receiver RX3 of cellular module 12, and filter 192 is connected between the input of power amplifier 191 and the second moving contact 242 of switch 24. Cellular signals received by antenna 46 can be transmitted to cellular receiving path 19 via switch 24, and cellular signals received by antenna 45 can be transmitted to cellular receiving path 18 via switches 25 and 24. Filter 192 can filter the received cellular signals before transmitting them to power amplifier 191, which amplifies the cellular signals before transmitting them to receiver RX3 of cellular module 12.

[0073] Cellular receiving path 26 includes a power amplifier 261 and a filter 262. The output of power amplifier 261 is connected to the receiver RX4 of cellular module 12, and filter 262 is connected between the input of power amplifier 261 and the second moving contact 252 of switch 25. Cellular signals received by antennas 44 and 45 can be transmitted to cellular receiving path 26 via switch 25. Filter 262 filters the received cellular signals before transmitting them to power amplifier 261, which amplifies the cellular signals before transmitting them to receiver RX4 of cellular module 12.

[0074] The first stationary contact 233 of switch 23 is connected to antenna 43, and the second stationary contact 234 of switch 23 is connected to the first moving contact 241 of switch 24. The first stationary contact 243 of switch 24 is connected to antenna 46, and the second stationary contact 244 of switch 24 is connected to the first moving contact 251 of switch 25. The first stationary contact 253 of switch 25 is connected to antenna 45. The second stationary contact 254 of switch 25 is connected to the fourth antenna 45.

[0075] like Figure 4 As shown, switches 23, 24, and 25 can all be divided into two states: a straight-through state and a cross-connected state. The straight-through state is as follows: Figure 4 The solid line position of the double-pole double-throw switch, the crossed state is as follows: Figure 4 The dashed line indicates the position of the double-pole double-throw switch.

[0076] For example, when switch 23 is in the straight-through state, the first moving contact 231 is connected to the first stationary contact 233, and the second moving contact 232 is connected to the second stationary contact 234; when switch 23 is in the cross-connected state, the first moving contact 231 is connected to the second stationary contact 234, and the second moving contact 232 is connected to the first stationary contact 233. When switch 24 is in the straight-through state, the first moving contact 241 is connected to the first stationary contact 243, and the second moving contact 242 is connected to the second stationary contact 244; when switch 24 is in the cross-connected state, the first moving contact 241 is connected to the second stationary contact 244, and the second moving contact 242 is connected to the first stationary contact 243. When switch 25 is in the through state, the first moving contact 251 is connected to the first stationary contact 253, and the second moving contact 252 is connected to the second stationary contact 254; when switch 25 is in the cross state, the first moving contact 251 is connected to the second stationary contact 254, and the second moving contact 252 is connected to the first stationary contact 253.

[0077] Please see Figure 5 , Figure 5 This is a partial structural schematic diagram of an electronic device 100 provided in one embodiment of this application.

[0078] and Figure 4 The difference between the electronic device 100 shown in the embodiment is that, as Figure 5 As shown, in this embodiment, the radio frequency module 10 also includes switches 36 and 37.

[0079] Switch 36 includes a first connection point 361, a second connection point 362, and a third connection point 363. Switch 37 includes a first connection point 371, a second connection point 372, and a third connection point 373.

[0080] In this embodiment, the first connection point 361 of switch 36 is connected to the second moving contact 252 of switch 25, the second connection point 362 of switch 36 is connected to filter 262, and the third connection point 363 of switch 36 is connected to the third connection point 373 of switch 37. The first connection point 371 of switch 37 is connected to filter 271, and the second connection point 372 of switch 37 is connected to antenna 42.

[0081] In this embodiment, both switch 36 and switch 37 are single-pole double-throw switches. The electronic device 100 may also include a control module 60. For example, the control module 60 may be a control chip within the electronic device 100.

[0082] Switch 37 can connect Bluetooth module 13 to antenna 42 or switch 36. Switch 36 can connect antenna 44 to cellular module 12 or switch 37.

[0083] Optionally, when the satellite communication module 11 is operating, switch 37 can connect the Bluetooth module 13 to switch 36, and switch 36 can connect the antenna 44 to switch 37 when the satellite communication module 11 is operating. With this design, when the satellite communication module 11 is operating, the Bluetooth module 13 can be connected to the antenna 44 through switches 37 and 36, thereby enabling the transmission and reception of Bluetooth signals through the antenna 44.

[0084] Optionally, switch 37 can also connect Bluetooth module 13 to antenna 42 when satellite communication module 11 is not working, and switch 36 can also connect antenna 44 to cellular module 12 when satellite communication module 11 is not working. With this design, when satellite communication module 11 is not working, Bluetooth module 13 can connect to antenna 42 via switch 37, thereby enabling the transmission and reception of Bluetooth signals through antenna 42. Bluetooth module 13 can also connect to antenna 44 or antenna 45 via switches 37 and 36. Cellular module 12 can receive and transmit cellular signals through antenna 44.

[0085] In its implementation, control module 60 can be connected to switches 36 and 37, meaning control module 60 can control the states of switches 36 and 37. For example, control module 60 can control the connection between the first connection point 361 and the second connection point 362, or between the first connection point 361 and the third connection point 363 of switch 36. Control module 60 can also control the connection between the first connection point 371 and the second connection point 372, or between the first connection point 371 and the third connection point 373 of switch 37.

[0086] By placing switch 36 between the receiver RX4 of cellular module 12 and switch 25, this application minimizes the insertion loss of Bluetooth and cellular N41, thereby minimizing the impact on radio frequency performance.

[0087] It is understandable that Bluetooth antennas and cellular antennas do not interfere with each other and can operate independently. To achieve wireless communication with satellites, the satellite communication antenna needs to occupy the entire top space of the frame 40. Therefore, when antenna 41 is working, antennas 42 and 43 are in a closed state, making Bluetooth unavailable. Thus, in a scenario where a user uses the satellite communication function of electronic device 100 and needs to use Bluetooth, the electronic device 100 of this application can achieve Bluetooth communication by reusing antenna 44 at the bottom of the frame. Antennas 41 and 44 have the highest isolation, avoiding coexistence interference between satellite communication and Bluetooth. Furthermore, to prevent excessive current coupling to antennas 42 and 43, antennas 42 and 43 are short-circuited, ensuring the gain of antenna 41.

[0088] In the scenario where the satellite communication module 11 is operating, the modem 70 is in a sleep state, meaning the states of switches 23, 24, and 25 are controlled by the control module 60. The control module 60 controls the first connection point 371 of switch 37 to connect with the third connection point 373, and controls the first connection point 361 of switch 36 to connect with the third connection point 363, to switch the Bluetooth channel to switch 25. The control module 60 also keeps switch 25 in a pass-through state, allowing the Bluetooth module 13 to connect to the antenna 44 located at the bottom of the frame, enabling Bluetooth signal transmission through the antenna 44. The control module 60 also grounds antennas 42 and 43 to ensure the gain of antenna 41. It can be understood that in other possible implementations, in the satellite communication scenario, the control module 60 could also control switch 25 to a crossover state, allowing Bluetooth module 13 to connect to the antenna 45 located on the side of the frame, enabling Bluetooth signal transmission through the antenna 45. In other words, antennas 41 and 42 do not operate simultaneously, but antennas 41 and 44 can operate simultaneously. In another alternative implementation, antennas 41 and 45 operate simultaneously, or antennas 41 and 46 operate simultaneously.

[0089] In the scenario where the satellite communication module 11 is not working, the control module 60 connects the first connection point 371 and the second connection point 372 of the control switch 37, connects the first connection point 361 and the second connection point 362 of the control switch 36, and releases switch 25. The control module 60 releases control over antennas 42 and 43, meaning antennas 42 and 43 are not grounded, in order to maintain the original high gain of the RF module. The modem 70 can maintain its original control state, meaning the states of switches 23, 24, and 25 are controlled by the modem 70.

[0090] Please see Figure 6 , Figure 6 This is a partial structural schematic diagram of an electronic device 100 provided in one embodiment of this application.

[0091] and Figure 5 The difference between the electronic device 100 shown in the embodiment is that, as Figure 6 As shown, in this embodiment, the radio frequency module 10 also includes a switch 38. The switch 38 may be a three-pole three-throw switch.

[0092] Compared to Figure 5 In the illustrated embodiment, an eighth switch 39 replaces switches 25 and 36. For example, switch 38 includes a first moving contact 381, a second moving contact 382, ​​a third moving contact 383, a first stationary contact 384, a second stationary contact 385, and a third stationary contact 386.

[0093] The first moving contact 381 of switch 38 is connected to the second stationary contact 244 of switch 24, the second moving contact 382 of switch 38 is connected to filter 262, and the third moving contact 383 of switch 38 is connected to the third connection point 373 of switch 37. The first stationary contact 384 of switch 38 is connected to antenna 45, and the second stationary contact 385 of switch 38 is connected to antenna 44. In this embodiment, the second stationary contact 385 of switch 38 can serve as the first connection point of switch 38, the second moving contact 382 of switch 38 can serve as the second connection point of switch 38, and the third moving contact 383 of switch 38 can serve as the third connection point of switch 38. When the satellite communication module 11 is working, the first connection point 371 of the first switch 37 is connected to the third connection point 373 of switch 37, and the second stationary contact 385 of switch 38 is connected to the third moving contact 383 of switch 38. When the satellite communication module 11 is not working, the first connection point 371 of the switch 37 is connected to the second connection point 372 of the switch 37, and the second stationary contact 385 of the switch 38 is connected to the second moving contact 382 of the switch 38.

[0094] Understandable, compared to Figure 5 In the illustrated embodiment, switches 25 and 36 are replaced with three-pole three-throw switches, which still allows for the reuse of the antenna 44 at the bottom of the frame for Bluetooth communication without affecting the front-end insertion loss of the cellular network. Based on this design, the RF module and electronic device of this application can achieve antenna reuse and reduce the difficulty of antenna design.

[0095] By using the RF module and electronic device of this application, the cellular antenna at the bottom of the frame is reused as a Bluetooth antenna, which makes the satellite communication antenna and Bluetooth antenna highly isolated and has low coexistence interference. This ensures that the performance of the electronic device under the coexistence of satellite communication and Bluetooth meets the user's requirements and improves the user experience.

[0096] Please see Figure 7 , Figure 7 This is a partial structural schematic diagram of an electronic device 100 provided in one embodiment of this application.

[0097] and Figure 5 The difference between the electronic device 100 shown in the embodiment is that, as Figure 7 As shown, in this embodiment, switch 36 connects the receiver RX3 of cellular module 12 to switch 24.

[0098] Specifically, the first connection point 361 of switch 36 is connected to the second moving contact 242 of switch 24. The first connection point 362 of switch 36 is connected to the third connection point 373 of switch 36. The third connection point 363 of switch 36 is connected to the receiver RX3 of cellular module 12 through cellular receiver path 19. It can be understood that in this embodiment, the second moving contact 252 of switch 25 is connected to the receiver RX4 of cellular module 12 through cellular receiver path 26.

[0099] In this embodiment, when the satellite communication module 11 is operating, the control module 60 connects the first connection point 371 and the third connection point 373 of the control switch 37, and connects the first connection point 361 and the third connection point 363 of the control switch 36, to switch the Bluetooth channel to the switch 24. Therefore, the control module 60 controls the state of the switch 24; for example, the control module 60 controls the second moving contact 242 of the switch 24 to connect to the first stationary contact 243. This allows the Bluetooth module 13 to connect to the antenna 46, thereby enabling the reception and transmission of Bluetooth signals through the antenna 46.

[0100] In the scenario where the satellite communication module 11 is not working, the control module 60 connects the first connection point 371 of the control switch 37 to the second connection point 372, and the first connection point 361 of the control switch 36 connects to the second connection point 362. The control module 60 releases control over antennas 42 and 43, meaning antennas 42 and 43 are not grounded, in order to maintain the original high gain of the RF module. The modem 70 maintains its original control state, meaning the states of switches 23, 24, and 25 are controlled by the modem 70.

[0101] Please see Figure 8 , Figure 8 This is a flowchart of a control method for a radio frequency module provided in one embodiment of this application. The control method for the radio frequency module may include the following steps:

[0102] Step S81: Receive user control instructions.

[0103] Electronic device 100 can receive control commands from users.

[0104] Step S82: Enable satellite communication function. If satellite communication function is enabled, proceed to step S83; otherwise, proceed to step S85.

[0105] Step S83: The modem enters sleep mode.

[0106] by Figure 5Taking the electronic device 100 shown in the embodiment as an example, the electronic device 100 activates the satellite communication function according to the upper-level user control command. In this scenario, the modem 70 enters a sleep state and releases the control of the switch 25. In other words, the control module 60 can control the state of the switch 25.

[0107] Step S84: The control module connects the first and second switches, sets the third switch to a direct-on state, and short-circuits the second and third antennas to ground. When the electronic device 100 activates the satellite communication function, i.e., when the satellite communication module 11 is working, the control module 60 connects switches 36 and 37, sets switch 25 to a direct-on state, and short-circuits antennas 42 and 43 to ground.

[0108] For example, control module 60 will ground antennas 42 and 43 to prevent excessive current coupling to them, thus ensuring the gain of antenna 41. Control module 60 connects the first connection point 371 of control switch 37 to the third connection point 373, and the first connection point 361 of control switch 36 to the third connection point 363. Control module 60 will also keep control switch 25 in a pass-through state, thereby connecting Bluetooth module 13 to antenna 44 located at the bottom of the frame, allowing Bluetooth module 13 to transmit Bluetooth signals through antenna 44. In other words, antennas 41 and 42 do not work simultaneously, but antennas 41 and 44 can work simultaneously. In another optional implementation, antennas 41 and 45 work simultaneously, or antennas 41 and 46 work simultaneously.

[0109] This application reuses the antenna 44 located at the bottom of the frame as a Bluetooth antenna, thereby achieving high isolation between the satellite communication antenna and the Bluetooth antenna and low interference during coexistence, which can ensure the communication performance of the electronic device 100 when satellite communication and Bluetooth coexist.

[0110] Step S85: The control module controls the second switch to connect to the cellular module and the third switch, controls the first switch to connect to the Bluetooth module and the second antenna, releases the control of the third switch to the modem, and controls the second antenna and the third antenna to enter the working state.

[0111] When the electronic device 100 disables the satellite communication function, i.e. when the satellite communication module 11 is not working, the control module 60 controls the first connection point 361 and the second connection point 362 of the control switch 36 to connect the receiver RX4 of the cellular module 12 to the switch 25, and controls the first connection point 371 and the second connection point 372 of the switch 37 to connect the transmitter TRX of the Bluetooth module 13 to the antenna 42. The control module 60 also releases the control of the switch 25 to the modem 70.

[0112] Step S86: The modem controls the third, fourth, and fifth switches.

[0113] In this embodiment, modem 70 will control switches 23, 24 and 25 according to the default scheduling scheme.

[0114] Among them, switches 21, 22, 36 and 37 are single-pole double-throw switches, and switches 23, 24 and 25 are double-pole double-throw switches.

[0115] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, any appropriate changes and variations made to the above embodiments within the essential spirit and scope of this application should fall within the scope of protection claimed by this application.

Claims

1. A radio frequency module of an electronic device, the electronic device comprising a bezel, the bezel comprising a first antenna, a second antenna, and a third antenna, the first antenna and the second antenna not operating at the same time, the first antenna and the third antenna operating at the same time, characterized in that, The radio frequency module comprises a Bluetooth module, a satellite communication module, a cellular module, a first switch and a second switch; The satellite communication module is connected with the first antenna, and the satellite communication module is used for receiving and sending satellite communication signals through the first antenna; The Bluetooth module is connected with the second antenna through the first switch, and the Bluetooth module is also connected with the third antenna through the first switch and the second switch, and the Bluetooth module receives and sends Bluetooth signals through the second antenna or the third antenna; The cellular module is connected with the third antenna, and the cellular module is used for receiving and sending cellular communication signals through the third antenna; The first switch is used for connecting the Bluetooth module and the second antenna or the second switch; The second switch is used for connecting the third antenna and the cellular module or the first switch.

2. The radio frequency module according to claim 1, wherein, The first switch is used for connecting the Bluetooth module and the second switch when the satellite communication module works, and the second switch is used for connecting the third antenna and the first switch when the satellite communication module works.

3. The radio frequency module according to claim 1 or 2, wherein, The first switch is used for connecting the Bluetooth module and the second antenna when the satellite communication module does not work, and the second switch is used for connecting the third antenna and the cellular module when the satellite communication module does not work.

4. The radio frequency module according to claim 1, wherein, The first switch comprises a first connection point, a second connection point and a third connection point, the first connection point of the first switch is connected with the Bluetooth module, the second connection point of the first switch is connected with the second antenna, and the third connection point of the first switch is connected with the second switch.

5. The radio frequency module according to claim 4, wherein, The second switch comprises a first connection point, a second connection point and a third connection point, the first connection point of the second switch is connected with the third antenna, the second connection point of the second switch is connected with the cellular module, and the third connection point of the second switch is connected with the third connection point of the first switch.

6. The radio frequency module according to claim 5, wherein, When the satellite communication module works, the first connection point of the first switch is connected with the third connection point of the first switch, and the first connection point of the second switch is connected with the third connection point of the second switch.

7. The radio frequency module according to claim 5 or 6, wherein, When the satellite communication module does not work, the first connection point of the first switch is connected with the second connection point of the first switch, and the first connection point of the second switch is connected with the second connection point of the second switch.

8. A control method of a radio frequency module, the radio frequency module comprising a Bluetooth module, a satellite communication module, a cellular module, a first switch and a second switch, the satellite communication module being connected with a first antenna, the satellite communication module being configured to receive and transmit satellite communication signals through the first antenna, the Bluetooth module being connected with a second antenna through the first switch, the Bluetooth module being further connected with a third antenna through the first switch and the second switch, the Bluetooth module being configured to receive and transmit Bluetooth signals through the second antenna or the third antenna, the cellular module being connected with the third antenna, the cellular module being configured to receive and transmit cellular communication signals through the third antenna, the first antenna and the second antenna not working at the same time, the first antenna and the third antenna working at the same time, characterized in that, The control method comprises: When the satellite communication module works, the first switch is controlled to connect the Bluetooth module and the second switch, and the second switch is controlled to connect the third antenna and the first switch; When the satellite communication module is not working, the first switch is controlled to connect the Bluetooth module and the second antenna, and the second switch is controlled to connect the third antenna and the cellular module.

9. The control method according to claim 8, characterized by, The first switch comprises a first connection point, a second connection point and a third connection point, the first connection point of the first switch is connected with the Bluetooth module, the second connection point of the first switch is connected with the second antenna, and the third connection point of the first switch is connected with the second switch; the second switch comprises a first connection point, a second connection point and a third connection point, the first connection point of the second switch is connected with the third antenna, the second connection point of the second switch is connected with the cellular module, and the third connection point of the second switch is connected with the third connection point of the first switch; the control method further comprises: When the satellite communication module is working, the first connection point of the first switch is connected with the third connection point of the first switch, and the first connection point of the second switch is connected with the third connection point of the second switch.

10. The control method according to claim 9, characterized by, The control method further comprises: When the satellite communication module is not working, the first connection point of the first switch is connected with the second connection point of the first switch, and the first connection point of the second switch is connected with the second connection point of the second switch.

11. An electronic device, comprising: The electronic device comprises a frame, a control module and a radio frequency module as claimed in any one of claims 1-7, the frame comprises a first antenna, a second antenna and a third antenna, the first antenna and the second antenna do not work at the same time, the first antenna and the third antenna work at the same time, and the control module is used for controlling the first switch and the second switch.

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