Radio frequency module, control method, and electronic device

Abstract

Provided in the present application are a radio frequency module, a control method, and an electronic device. The electronic device comprises a frame, which frame comprises a first antenna, a second antenna and a third antenna, wherein the first antenna and the second antenna do not operate at the same time, and the first antenna and the third antenna operate at the same time. The radio frequency module comprises a Bluetooth module, a satellite communication module, a cellular module, a first switch and a second switch, wherein the satellite communication module is connected to the first antenna; the Bluetooth module is connected to the second antenna by means of the first switch, and is further connected to the third antenna by means of the first switch and the second switch, and the cellular module is connected to the third antenna; the first switch is used for connecting the Bluetooth module to the second antenna or the second switch; and the second switch is used for connecting the third antenna to the cellular module or the first switch. The present application brings about a high degree of isolation between a satellite communication antenna and a Bluetooth antenna, and low coexistence interference, and can ensure that the performance of an electronic device under the coexistence of satellite communication and Bluetooth meets usage requirements of users, thereby improving the user experience.

Description

Radio frequency module, control method, and electronic device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on July 18, 2023, with application number 202310884483.5 and application name “RF module, control method and electronic device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of communication technology, and in particular to a radio frequency module, a control method, and an electronic device. Background Art

[0004] At present, electronic devices can use satellite communication functions for emergency communications when they are in areas where communication networks are not covered (for example, uninhabited areas, border areas, deserts, mountainous areas, oceans, etc.). In scenarios where electronic devices use satellite communication, in order to avoid the human head affecting the antenna during voice calls, users need to establish a connection with the electronic device through a Bluetooth headset before using the Bluetooth headset for voice communication. Therefore, how to ensure that the communication performance of electronic devices meets user needs when satellite communication and Bluetooth coexist has become an urgent problem that needs to be solved.

[0005] Summary of the Invention

[0006] In view of the above, the present application provides a radio frequency module, a control method, and an electronic device, which can ensure 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.

[0007] According to a first aspect of the present application, a radio frequency module for an electronic device is provided. The electronic device includes a frame, the frame including a first antenna, a second antenna, and a third antenna. The first antenna and the second antenna do not operate simultaneously, but the first antenna and the third antenna operate simultaneously. 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 to the first antenna and is configured to receive and transmit satellite communication signals via the first antenna. The Bluetooth module is connected to the second antenna via a first switch and is also connected to the third antenna via a first switch and a second switch. The Bluetooth module receives and transmits Bluetooth signals via the second antenna or the third antenna. The cellular module is connected to the third antenna and is configured to receive and transmit cellular communication signals via the third antenna. The first switch is configured to connect the Bluetooth module to the second antenna or the second switch. The second switch is configured to connect the third antenna to the cellular module or the first switch. The radio frequency module of the present application reuses the cellular antenna at the bottom of the frame as a Bluetooth antenna, thereby achieving high isolation between the satellite communication antenna and the Bluetooth antenna and minimizing coexistence interference. This ensures that the electronic device's satellite communication and Bluetooth coexistence performance meets user requirements, enhancing the user experience.

[0008] As an optional implementation, the first switch is used to connect the Bluetooth module to the second switch when the satellite communication module is operating, and the second switch is used to connect the third antenna to the first switch when the satellite communication module is operating. Based on this design, the cellular antenna at the bottom of the frame can be reused as a Bluetooth antenna, ensuring the performance of the electronic device when satellite communication and Bluetooth coexist, improving the user experience.

[0009] As an optional implementation, the first switch is configured to connect the Bluetooth module to the second antenna when the satellite communication module is not operating, and the second switch is configured to connect the third antenna to the cellular module when the satellite communication module is not operating. Therefore, when the satellite communication module is not operating, 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, thereby enabling the electronic device to function normally and meeting the user's communication needs.

[0010] 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.

[0011] 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 of the second switch is connected to the third connection of the first switch.

[0012] As an optional implementation, when the satellite communication module is operating, 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 frame 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 operating, 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 the present application, when the satellite communication module is not operating, 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, thereby achieving normal communication functions of the electronic device and meeting the user's communication needs.

[0014] The second aspect of the present application also provides a control method for a radio frequency module, the radio frequency module including a Bluetooth module, a satellite communication module, a cellular module, a first switch and a second switch, the satellite communication module being connected to the first antenna, the satellite communication module being used to receive and send satellite communication signals through the first antenna, the Bluetooth module being connected to the second antenna through the first switch, the Bluetooth module being further connected to the third antenna through the first switch and the second switch, the cellular module being connected to the third antenna, the first antenna and the second antenna not being operated simultaneously, the first antenna and the third antenna being operated simultaneously, the control method comprising: 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. The control method of the radio frequency module of the present application, by reusing 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, minimizes coexistence interference, and ensures that the performance of the electronic device under the coexistence of satellite communication and Bluetooth meets the user's requirements, thereby improving the user experience.

[0015] 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 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 of the second switch is connected to the third connection of the first switch, and the control method further includes: when the satellite communication module is working, controlling the first connection point of the first switch to be connected to the third connection point of the first switch, and controlling the first connection point of the second switch to be connected to the third connection point of the second switch. Based on such a design, the cellular antenna at the bottom of the frame can be reused as a Bluetooth antenna to ensure the performance of the electronic device under the coexistence of satellite communication and Bluetooth, thereby improving the user experience.

[0016] As an optional implementation, when the satellite communication module is not operating, the first connection point of the first switch is controlled to be connected to the second connection point of the first switch, and the first connection point of the second switch is controlled to be connected to the second connection point of the second switch. In the present application, when the satellite communication module is not operating, 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, thereby realizing normal communication functions of the electronic device and meeting the user's communication needs.

[0017] The third aspect of the present application also provides an electronic device, which includes a frame, a control module and the radio frequency module as described above, 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, the first antenna and the third antenna work at the same time, and the control module is used to control the first switch and the second switch.

[0018] By adopting the RF module, control method and electronic device of the present application, the cellular antenna at the bottom of the frame is reused as a Bluetooth antenna, so that the isolation between the satellite communication antenna and the Bluetooth antenna is high and the coexistence interference is small, which can ensure 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0020] FIG1 is a schematic structural diagram of an electronic device in an embodiment of the present application.

[0021] FIG2 is a schematic structural diagram of the frame in FIG1 .

[0022] FIG3 is a schematic diagram of a partial structure of a frame provided by an embodiment of the present application.

[0023] FIG4 is another schematic diagram of an electronic device in an embodiment of the present application.

[0024] FIG5 is another schematic diagram of an electronic device in an embodiment of the present application.

[0025] FIG6 is another schematic diagram of an electronic device in an embodiment of the present application.

[0026] FIG7 is another schematic diagram of an electronic device in an embodiment of the present application.

[0027] FIG8 is a flow chart of a method for controlling a radio frequency module in an embodiment of the present application. DETAILED DESCRIPTION

[0028] In the embodiments of this application, terms such as "first" and "second" are used solely to distinguish between different objects and should not be construed as indicating or implying relative importance or order. For example, terms such as "first application" and "second application" are used to distinguish between different applications, not to describe a specific order of applications. Features defined as "first" or "second" may explicitly or implicitly include one or more of these features.

[0029] Typically, users can use the satellite communication function of electronic devices for emergency communications in areas where communication networks are not available. When using satellite communication, to prevent the human head from interfering with the antenna during voice calls, users must first establish a connection with the electronic device through a 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.

[0030] To address the problems in the above scenarios, this application provides a radio frequency module, a control method, and an electronic device, which can ensure that the performance of the electronic device when satellite communication and Bluetooth coexist meets the user's usage requirements and improves the user experience.

[0031] The radio frequency module, control method, and electronic device of the present application will be described in detail below with reference to the accompanying drawings.

[0032] Please refer to Figure 1, which is a schematic diagram of the structure of an electronic device 100 provided in an embodiment of the present application. 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 present application uses the mobile phone as an example to illustrate the electronic device 100.

[0033] In the present application, the electronic device may support at least one of WiFi (wireless communication technology), cellular mobile communication, Bluetooth, and satellite communication functions.

[0034] For example, as shown in Figure 1, 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 opposite sides of the frame 40, and the back cover 30, the display screen 20, and the frame 40 together enclose the entire inner cavity of the electronic device 100.

[0035] Exemplarily, the RF module 10 is installed in the inner cavity of the whole machine. The RF module 10 can be electrically connected to the frame 40. The RF module 10 can be used to process the communication signal and transmit it to the antenna to be transmitted via the antenna, or process the communication signal received by the antenna and transmit it to other modules for subsequent processing to realize 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 realize the communication function of the electronic device 100.

[0036] The display screen 20 is used to display images and may also integrate a touch function to enable human-computer interaction. The back cover 30 is used to protect the internal structure of the electronic device 100 and may be made of metal, non-metal, or a metal-non-metal composite material.

[0037] For example, a through hole 50 may be provided at the bottom of the frame 40 , and external devices of the electronic device 100 may be connected to the electronic device 100 through the through hole 50 , such as electrical connection and communication connection.

[0038] For example, the electronic device 100 may further include a camera hole 52 and a speaker hole 54. The camera hole 52 and the speaker hole 54 may be provided at the top of the display screen 20. The camera hole 52 may be used to collect optical information outside the electronic device 100, and the speaker hole 54 may be used to transmit acoustic information to the outside of the electronic device 100.

[0039] It can be understood that in other embodiments, the electronic device 100 may also include one or more of the following components, such as a processor, a circuit board, a memory, a power supply component, an input and output circuit, an audio component (such as a microphone and a speaker, etc.), a multimedia component (such as a front camera and / or a rear camera), a sensor component (such as a proximity sensor, a distance sensor, an ambient light sensor, an acceleration sensor, a gyroscope, a magnetic sensor, a pressure sensor and / or a temperature sensor, etc.), etc., which will not be repeated here.

[0040] The electronic device 100 of the present application may include functions such as WiFi, cellular mobile communications, and Bluetooth that require communication system support, enabling the electronic device 100 to implement communication functions in environments where the communication system supports them. Furthermore, the electronic device 100 also integrates satellite communication functionality, enabling the electronic device 100 to implement communication functions even in scenarios without cellular network coverage, thereby making the electronic device 100 versatile and adaptable to diverse application environments.

[0041] Please refer to FIG. 2 , which is a schematic structural diagram of the frame 40 shown in FIG. 1 .

[0042] 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 a first slit 401, a second slit 402, a third slit 403, a fourth slit 404, a fifth slit 405, a sixth slit 406, a seventh slit 407 and an eighth slit 408.

[0043] It can be understood that in this embodiment, the above-mentioned first to eighth gaps all pass through and separate the frame 40. The first to eighth gaps together divide a plurality of metal segments from the frame 40. Every two metal segments are separated by a gap. 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 RF module 10 of the present application can be connected to multiple antennas to realize the communication function of the electronic device 100.

[0044] For example, the first slit 401 and the second slit 402 are provided in the top metal frame of the electronic device 100. The third slit 403 and the fourth slit 404 are provided in the side metal frame of the electronic device 100. The fifth slit 405, the sixth slit 406, and the seventh slit 407 are provided in the other side metal frame of the electronic device 100. The eighth slit 408 is provided in the bottom metal frame of the electronic device 100.

[0045] It is understood that the multiple antennas may include the first to sixth antennas. In a specific implementation, the metal segment located between the first slot 401 and the second slot 402 is antenna 41, which serves as the top satellite communication antenna of the electronic device 100. The metal segment located between the first slot 401 and the third slot 403 is antenna 42, which serves as the top Bluetooth antenna of the electronic device 100. The metal segment located between the second slot 402 and the fifth slot 405 is antenna 43, which serves as the top cellular antenna of the electronic device 100. The metal segment located between the third slot 403 and the fourth slot 404 is antenna 45. Antenna 45 serves as the side cellular antenna of the electronic device 100. The metal segment located between the fifth slot 405 and the sixth slot 406 is antenna 46, which serves as the side cellular antenna of the electronic device 100. The metal segment located between the seventh slot 407 and the eighth slot 408 is antenna 44, which serves as the bottom cellular antenna of the electronic device 100.

[0046] In other words, the antenna 41 of the present application is set at the top of the frame 40, the second antenna is set at the upper left corner of the frame 40, the antenna 44 is set at the lower right corner of the frame 40, and the antenna 45 and the antenna 46 are set on the side of the frame 40.

[0047] Among them, satellite communication refers to the communication between two or more ground stations using artificial satellites as relay stations to forward or reflect radio signals.

[0048] WiFi and Bluetooth are wireless networking technologies that enable wireless communication within a certain range.

[0049] Cellular mobile communication is a wireless communication technology that uses a mesh structure to achieve wireless communication over a large area. For example, cellular mobile communication can use a variety of network types, such as: Global System for Mobile Communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Long Term Evolution (LTE), etc. Cellular mobile communication can also use a variety of communication frequency bands, such as: N41, N78, N79, etc. In the embodiment of the present application, the electronic device 100 can use N41 as the operating frequency band for cellular mobile communication.

[0050] For example, in this application, antenna 41 is a satellite communication antenna, and electronic device 100 can transmit and receive satellite communication signals via antenna 41. Antenna 42 is a Bluetooth antenna, and electronic device 100 can transmit and receive Bluetooth signals via antenna 42. Antennas 43, 45, 46, and 44 are cellular antennas. Electronic device 100 can implement cellular network communication via antennas 43, 45, 46, and 44. The frequency information is shown in Table 1 below.

[0051] Table 1

[0052] Please refer to Figure 3, which is a partial structural diagram of an electronic device 100 provided in one embodiment of the present 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 provided on antenna 42, and feed point 431 may be provided on antenna 43.

[0053] For example, as shown in FIG3 , the feed point 421 may be connected to the system ground via a switch S1 , and the feed point 431 may be connected to the system ground via a switch S2 .

[0054] It is understood that in one possible application scenario, when antenna 41 is operating, antenna 42 and antenna 43 are short-circuited, i.e., antenna 42 and antenna 43 are not operating. For example, when antenna 41 (i.e., the satellite communication antenna) is operating, switches S1 and S2 are in the on state, causing antenna 42 (i.e., the Bluetooth antenna) to be short-circuited to ground, and antenna 43 (i.e., the cellular antenna) to be short-circuited to ground. This ensures that current is not excessively coupled to antenna 42 and antenna 43, thereby maintaining the gain of the satellite communication antenna.

[0055] In this embodiment, as shown in FIG3 , 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 transmit frequency. Switch S4 is used to optimize the performance of antenna 41 at the receive frequency.

[0056] Please refer to FIG4 , which is a schematic diagram of a partial structure of an electronic device 100 provided in one embodiment of the present application.

[0057] The electronic device 100 of the present application, such as a mobile phone or PAD terminal, supports communication functions such as satellite communication, cellular Band 41, and Bluetooth, and includes modules, transceiver channels, and antennas corresponding to different communication functions. Specifically, as shown in Figure 4, the satellite communication function corresponds to a satellite communication module, a satellite communication channel, and a satellite communication antenna; the cellular Band 41 function corresponds to a cellular module, a cellular N41 channel, and a Band 41 antenna; and the Bluetooth function corresponds to a Bluetooth module, a Bluetooth channel, and a Bluetooth antenna.

[0058] Exemplarily, electronic device 100 includes a radio frequency module 10 and multiple antennas. The multiple antennas may include antenna 41, antenna 42, antenna 43, antenna 44, antenna 45, and antenna 46. That is, frame 40 may include antenna 41, antenna 42, antenna 43, antenna 44, antenna 45, and antenna 46. RF module 10 may be connected to antenna 41, antenna 42, antenna 43, antenna 44, antenna 45, and antenna 46 to implement the communication function of electronic device 100.

[0059] Antenna 41 can be used to receive and transmit satellite communication signals and implement signal transmission for satellite communication functions. Antenna 42 can implement signal transmission for Bluetooth functions. Antennas 43, 44, 45, and 46 can implement signal transmission for cellular communication functions.

[0060] The RF 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 transmission path 16, a cellular reception path 17, a cellular reception path 18, a cellular reception path 19, a cellular reception path 26 and a Bluetooth path 27.

[0061] Exemplarily, antenna 41 is connected to satellite communication module 11, and satellite communication module 11 can receive satellite communication signals or transmit satellite communication signals through antenna 41. Antenna 42 is connected to Bluetooth module 13, and Bluetooth module 13 can transmit and receive Bluetooth signals through antenna 42. Antenna 43, antenna 44, antenna 45 and antenna 46 are connected to cellular module 12, and cellular module 12 can receive cellular signals or transmit cellular signals through antenna 44. Alternatively, in other possible application scenarios, cellular module 12 can also transmit and receive cellular mobile signals through antenna 43, antenna 44, antenna 45 and antenna 46, and can switch different antennas to achieve cellular communication. Cellular module 12 can select an antenna with better performance for cellular communication. It can be 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.

[0062] The Bluetooth path 27 includes a filter 271, which is connected between the transmitting and receiving terminal TRX of the Bluetooth module 13 and the antenna 42. The filter 271 is used to filter the Bluetooth signal output by the transmitting and receiving terminal TRX of the Bluetooth module 13, or the filter 271 is used to filter the Bluetooth signal received by the antenna 42 or the antenna 44.

[0063] The satellite uplink path 14 is used to transmit satellite communication signals sent by the satellite communication module 11 to the antenna 41, and then transmit them via the antenna 41. The satellite downlink path 15 is used to transmit satellite communication signals 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 implementing time-division operation of the satellite communication module 11. Exemplarily, the switch 21 may be a single-pole double-throw switch. For example, 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 via 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 .

[0064] Exemplarily, 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. 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 clutter in the satellite communication signal transmitted by the satellite communication module 11. The power amplifier 142 is used to amplify the power of the satellite communication signal under a given distortion rate.

[0065] Satellite downlink path 15 may include a filter 151, a power amplifier 152, and a filter 153. Filter 151 is connected between the receiving terminal RX of satellite communication module 11 and the output terminal of power amplifier 152. Filter 153 is connected between the input terminal of power amplifier 152 and the third connection point 213 of switch 21. Filter 153 is configured to filter satellite communication signals received by antenna 41. Power amplifier 152 is configured to amplify the power of the filtered satellite communication signals before transmitting them to filter 151 and the receiving terminal RX of satellite communication module 11.

[0066] The RF module 10 may further include a switch 22, a switch 23, a switch 24, and a switch 25. For example, the switch 22 may be a single-pole double-throw switch, and the switches 23, 24, and 25 may all be double-pole double-throw switches.

[0067] The switch 22 includes a first connection point 221 , a second connection point 222 and a third connection point 223 .

[0068] The switch 23 includes a first movable contact 231 , a second movable contact 232 , a first stationary contact 233 , and a second stationary contact 234 .

[0069] The switch 24 includes a first movable contact 241 , a second movable contact 242 , a first stationary contact 243 , and a second stationary contact 244 .

[0070] The switch 25 includes a first movable contact 251 , a second movable contact 252 , a first stationary contact 253 , and a second stationary contact 254 .

[0071] The cellular transmit path 16 includes a power amplifier 161. The input of the power amplifier 161 is connected to the transmit terminal TX of the cellular module 12, and the output of the power amplifier 161 is connected to the second connection point 222 of the switch 22. The filter 162 is connected between the first connection point 221 of the switch 22 and the first movable contact 231 of the switch 23. The power amplifier 161 is used to amplify the power of the cellular signal output by the transmit terminal TX of the cellular module 12 and output it to the filter 162 through the switch 22. The filter 162 is used to filter the cellular signal after power amplification by the power amplifier 161 and transmit it to the antenna 43 through the switch 23.

[0072] Cellular receiving path 17 includes a power amplifier 171. The output of power amplifier 171 is connected to the receiving terminal 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 and transmit it to power amplifier 171 through switch 22. Power amplifier 171 amplifies the power of the cellular signal and transmits it to the receiving terminal RX1 of cellular module 12.

[0073] Cellular receive path 18 includes a power amplifier 181 and a filter 182. The output of power amplifier 181 is connected to the receive terminal RX2 of cellular module 12, and filter 182 is connected between the input of power amplifier 181 and the second movable contact 232 of switch 23. Cellular signals received by antenna 43 can be transmitted to cellular receive path 18 via switch 23, and cellular signals received by antenna 46 can be transmitted to cellular receive path 18 via switches 24 and 23. Filter 182 filters the received cellular signals and transmits them to power amplifier 181. Power amplifier 181 amplifies the power of the signals and transmits them to receive terminal RX2 of cellular module 12.

[0074] Cellular receive path 19 includes a power amplifier 191 and a filter 192. The output of power amplifier 191 is connected to receive terminal RX3 of cellular module 12, while filter 192 is connected between the input of power amplifier 191 and the second movable contact 242 of switch 24. Cellular signals received by antenna 46 can be transmitted to cellular receive path 19 via switch 24, while cellular signals received by antenna 45 can be transmitted to cellular receive path 18 via switches 25 and 24. Filter 192 filters the received cellular signals and transmits them to power amplifier 191. Power amplifier 191 amplifies the power of the signals and transmits them to receive terminal RX3 of cellular module 12.

[0075] The cellular receive path 26 includes a power amplifier 261 and a filter 262. The output of the power amplifier 261 is connected to the receive terminal RX4 of the cellular module 12, and the filter 262 is connected between the input of the power amplifier 261 and the second movable contact 252 of the switch 25. Cellular signals received by antennas 44 and 45 can be transmitted to the cellular receive path 26 via the switch 25. The filter 262 filters the received cellular signals and transmits them to the power amplifier 261. The power amplifier 261 amplifies the power of the cellular signals and transmits them to the receive terminal RX4 of the cellular module 12.

[0076] 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 movable contact 241 of switch 24. The first stationary contact 243 of switch 24 is connected to antenna 46, the second stationary contact 244 of switch 24 is connected to the first movable contact 251 of switch 25, and 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.

[0077] As shown in FIG4 , switches 23 , 24 and 25 can be divided into two states, namely a through state and a cross state, wherein the through state is the solid line position of the double-pole double-throw switch in FIG4 , and the cross state is the dotted line position of the double-pole double-throw switch in FIG4 .

[0078] For example, when switch 23 is in the through state, the first movable contact 231 is connected to the first stationary contact 233, and the second movable contact 232 is connected to the second stationary contact 234. When switch 23 is in the cross state, the first movable contact 231 is connected to the second stationary contact 234, and the second movable contact 232 is connected to the first stationary contact 233. When switch 24 is in the through state, the first movable contact 241 is connected to the first stationary contact 243, and the second movable contact 242 is connected to the second stationary contact 244. When switch 24 is in the cross state, the first movable contact 241 is connected to the second stationary contact 244, and the second movable contact 242 is connected to the first stationary contact 243. When the switch 25 is in the through state, the first moving contact 251 is connected to the first static contact 253, and the second moving contact 252 is connected to the second static contact 254; when the switch 25 is in the cross state, the first moving contact 251 is connected to the second static contact 254, and the second moving contact 252 is connected to the first static contact 253.

[0079] Please refer to FIG5 , which is a schematic diagram of a partial structure of an electronic device 100 provided in one embodiment of the present application.

[0080] The difference from the electronic device 100 shown in the embodiment of FIG. 4 is that, as shown in FIG. 5 , in this embodiment, the RF module 10 further includes a switch 36 and a switch 37 .

[0081] The switch 36 includes a first connection point 361, a second connection point 362, and a third connection point 363. The switch 37 includes a first connection point 371, a second connection point 372, and a third connection point 373.

[0082] In this embodiment, a first connection point 361 of switch 36 is connected to the second movable contact 252 of switch 25, a second connection point 362 of switch 36 is connected to the filter 262, and a third connection point 363 of switch 36 is connected to the third connection point 373 of switch 37. A first connection point 371 of switch 37 is connected to the filter 271, and a second connection point 372 of switch 37 is connected to the antenna 42.

[0083] In this embodiment, the switch 36 and the switch 37 are both single-pole double-throw switches. The electronic device 100 may further include a control module 60. For example, the control module 60 may be a control chip in the electronic device 100.

[0084] The switch 37 can connect the Bluetooth module 13 to the antenna 42 or the switch 36 . The switch 36 can connect the antenna 44 to the cellular module 12 or the switch 37 .

[0085] Optionally, the switch 37 can connect the Bluetooth module 13 to the switch 36 when the satellite communication module 11 is operating, and the switch 36 can connect the antenna 44 to the 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 the switches 37 and 36, thereby enabling the transmission and reception of Bluetooth signals through the antenna 44.

[0086] Optionally, switch 37 can connect the Bluetooth module 13 to antenna 42 when the satellite communication module 11 is not operating, and switch 36 can connect antenna 44 to cellular module 12 when the satellite communication module 11 is not operating. With this design, when the satellite communication module 11 is not operating, the Bluetooth module 13 can connect to antenna 42 via switch 37, thereby transmitting and receiving Bluetooth signals via antenna 42. The Bluetooth module 13 can also connect to antenna 44 or antenna 45 via switches 37 and 36. The cellular module 12 can transmit and receive cellular signals via antenna 44.

[0087] In a specific implementation, the control module 60 can be connected to the switch 36 and the switch 37. That is, the control module 60 can control the states of the switches 36 and 37. For example, the control module 60 can control the connection between the first connection point 361 and the second connection point 362 of the switch 36, or the connection between the first connection point 361 and the third connection point 363. The control module 60 can also control the connection between the first connection point 371 and the second connection point 372 of the switch 37, or the connection between the first connection point 371 and the third connection point 373.

[0088] The present application sets the switch 36 between the receiving terminal RX4 of the cellular module 12 and the switch 25, so as to minimize the insertion loss of Bluetooth and cellular N41, thereby minimizing the impact on radio frequency performance.

[0089] It can be understood that the Bluetooth antenna and the cellular antenna do not affect each other and can work independently. In order to achieve wireless performance for satellite communication, the satellite communication antenna needs to occupy the entire space at the top of the frame 40. Therefore, when antenna 41 is working, antenna 42 and antenna 43 are in the off state, resulting in Bluetooth being unavailable. It can be seen that in a scenario, for example, when a user uses the satellite communication function of the electronic device 100 to communicate and needs to use the Bluetooth scenario, the electronic device 100 of the present application can realize Bluetooth communication by reusing the antenna 44 at the bottom of the frame. The isolation between antenna 41 and antenna 44 is the highest, and the coexistence of adjacent frequency interference between satellite communication and Bluetooth can also be avoided. In addition, in order to prevent the current from being excessively coupled to antenna 42 and antenna 43, antenna 42 and antenna 43 are in a short-circuit state, which can ensure the gain of the first antenna 41.

[0090] When satellite communication module 11 is operating, modem 70 is in a dormant state, meaning the states of switches 23, 24, and 25 are controlled by control module 60. Control module 60 controls the connection between first connection point 371 of switch 37 and third connection point 373, and between first connection point 361 of switch 36 and third connection point 363, switching the Bluetooth channel to switch 25. Control module 60 also controls switch 25 to maintain a straight-through state, thereby connecting Bluetooth module 13 to antenna 44 at the bottom of the frame. Bluetooth module 13 can transmit Bluetooth signals via antenna 44. Control module 60 also controls antenna 42 and antenna 43 to ground, thereby ensuring the gain of antenna 41. It will be appreciated that in other possible implementations, when satellite communication is operating, control module 60 can also control switch 25 to a crossover state, connecting Bluetooth module 13 to antenna 45 at the side of the frame. Bluetooth module 13 can also transmit Bluetooth signals via antenna 45. In other words, antenna 41 and antenna 42 do not work at the same time, but antenna 41 and antenna 44 can work at the same time. In another optional implementation, antenna 41 and antenna 45 work at the same time, or antenna 41 and antenna 46 work at the same time.

[0091] When satellite communication module 11 is not operating, control module 60 controls switch 37 to connect first connection point 371 to second connection point 372, controls switch 36 to connect first connection point 361 to second connection point 362, and releases switch 25. Control module 60 releases control of antenna 42 and antenna 43, disconnecting antenna 42 and antenna 43 from ground, thereby maintaining the original high gain of the RF module. Modem 70 can maintain its original control state, i.e., the states of switches 23, 24, and 25 are controlled by modem 70.

[0092] Please refer to FIG. 6 , which is a schematic diagram of a partial structure of an electronic device 100 provided in one embodiment of the present application.

[0093] The difference from the electronic device 100 shown in the embodiment of FIG5 is that, as shown in FIG6 , in this embodiment, the RF module 10 further includes a switch 38. The switch 38 may be a three-pole three-throw switch.

[0094] 5 , this embodiment uses an eighth switch 39 to replace switches 25 and 36. Exemplarily, switch 38 includes a first movable contact 381, a second movable contact 382, ​​a third movable contact 383, a first stationary contact 384, a second stationary contact 385, and a third stationary contact 386.

[0095] The first movable contact 381 of switch 38 is connected to the second stationary contact 244 of switch 24, the second movable contact 382 of switch 38 is connected to the filter 262, and the third movable 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 movable contact 382 of switch 38 can serve as the second connection point of switch 38, and the third movable contact 383 of switch 38 can serve as the third connection point of switch 38. When the satellite communication module 11 is in operation, the first connection point 371 of 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 movable 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 static contact 385 of the switch 38 is connected to the second movable contact 382 of the switch 38 .

[0096] It can be understood that, compared to the embodiment shown in FIG5 , in this embodiment, by replacing switches 25 and 36 with a three-pole, three-throw switch, the antenna 44 at the bottom of the frame can also be reused for Bluetooth communication without affecting the front-end insertion loss of the cellular. Based on this design, the RF module and electronic device of the present application can achieve antenna reuse and reduce the difficulty of antenna design.

[0097] 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, so that the isolation between the satellite communication antenna and the Bluetooth antenna is high and the coexistence interference is small, which can ensure 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.

[0098] Please refer to FIG. 7 , which is a schematic diagram of a partial structure of an electronic device 100 provided in one embodiment of the present application.

[0099] The difference from the electronic device 100 shown in the embodiment of FIG. 5 is that, as shown in FIG. 7 , in this embodiment, the switch 36 is connected between the receiving terminal RX3 of the cellular module 12 and the switch 24 .

[0100] Specifically, the first connection point 361 of the switch 36 is connected to the second movable contact 242 of the switch 24. The first connection point 362 of the switch 36 is connected to the third connection point 373 of the switch. The third connection point 363 of the switch 36 is connected to the receiving terminal RX3 of the cellular module 12 via the cellular receiving path 19. It will be understood that in this embodiment, the second movable contact 252 of the switch 25 is connected to the receiving terminal RX4 of the cellular module 12 via the cellular receiving path 26.

[0101] In this embodiment, when the satellite communication module 11 is operating, the control module 60 controls the first connection point 371 of the switch 37 to connect to the third connection point 373, and controls the first connection point 361 of the switch 36 to connect to the third connection point 363, so as 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 movable 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 via the antenna 46.

[0102] When satellite communication module 11 is not operating, control module 60 controls switch 37 to connect first connection point 371 to second connection point 372, and controls switch 36 to connect first connection point 361 to second connection point 362. Control module 60 releases control of antenna 42 and antenna 43, disconnecting antenna 42 and antenna 43 from ground, thereby maintaining the original high gain of the RF module. Modem 70 maintains its original control state, i.e., the states of switches 23, 24, and 25 are controlled by modem 70.

[0103] Please refer to Figure 8, which is a flow chart of a method for controlling a radio frequency module according to an embodiment of the present application. The method for controlling a radio frequency module may include the following steps:

[0104] Step S81: Receive user control instructions.

[0105] The electronic device 100 can receive control instructions from the user.

[0106] Step S82: Is the satellite communication function turned on? If the satellite communication function is turned on, go to step S83, otherwise go to step S85.

[0107] Step S83: The modem enters a dormant state.

[0108] Taking the electronic device 100 shown in FIG5 as an example, the electronic device 100 activates the satellite communication function according to the upper-layer user control instruction. In this scenario, the modem 70 enters a dormant state and releases the control of the switch 25. In other words, the control module 60 can control the state of the switch 25.

[0109] Step S84: The control module connects the first and second switches, switches the third switch to a direct state, and shorts the second and third antennas to ground. When the satellite communication function of electronic device 100 is enabled (i.e., satellite communication module 11 is operational), control module 60 connects switches 36 and 37, switches 25 to a direct state, and shorts antennas 42 and 43 to ground.

[0110] For example, the control module 60 will control the antenna 42 and the antenna 43 to be grounded to prevent the current from being excessively coupled to the antenna 42 and the antenna 43, thereby ensuring the gain of the antenna 41. The control module 60 controls the first connection point 371 of the switch 37 to be connected to the third connection point 373, and controls the first connection point 361 of the switch 36 to be connected to the third connection point 363. The control module 60 also controls the switch 25 to remain in a straight-through state, thereby connecting the Bluetooth module 13 to the antenna 44 at the bottom of the frame, so that the Bluetooth module 13 can transmit Bluetooth signals through the antenna 44. In other words, the antenna 41 and the antenna 42 do not work at the same time, and the antenna 41 and the antenna 44 can work at the same time. In another optional implementation, the antenna 41 and the antenna 45 work at the same time, or the antenna 41 and the antenna 46 work at the same time.

[0111] This application reuses the antenna 44 at the bottom of the frame as a Bluetooth antenna, so that the satellite communication antenna and the Bluetooth antenna are highly isolated and the coexistence interference is small, which can ensure the communication performance of the electronic device 100 when satellite communication and Bluetooth coexist.

[0112] Step S85: The control module controls the second switch to connect the cellular module and the third switch, controls the first switch to connect the Bluetooth module and the second antenna, releases control of the third switch to the modem, and controls the second antenna and the third antenna to enter working state.

[0113] When the satellite communication function of the electronic device 100 is turned off, that is, when the satellite communication module 11 is not working, the control module 60 controls the first connection point 361 of the switch 36 to connect with the second connection point 362 to connect the receiving end RX4 of the cellular module 12 to the switch 25, and controls the first connection point 371 of the switch 37 to connect with the second connection point 372 to connect the transmitting and receiving end TRX of the Bluetooth module 13 to the antenna 42. The control module 60 also releases the control right of the switch 25 to the modem 70.

[0114] Step S86: The modem controls the third switch, the fourth switch, and the fifth switch.

[0115] In this embodiment, the modem 70 controls the switches 23 , 24 and 25 according to the default scheduling scheme.

[0116] Among them, switch 21, switch 22, switch 36 and switch 37 are single-pole double-throw switches, and switch 23, switch 24 and switch 25 are double-pole double-throw switches.

[0117] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, as long as they are within the scope of the essence of the present application, appropriate changes and modifications made to the above embodiments should fall within the scope of protection claimed in the present application.

Claims

1. A radio frequency module of an electronic device, the electronic device comprising a frame, the frame comprising 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, characterized in that: 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 to the first antenna, and the satellite communication module is used to receive and send satellite communication signals through the first antenna; The Bluetooth module is connected to the second antenna through the first switch, and the Bluetooth module is also connected to 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 to the third antenna, and the cellular module is used to receive and send cellular communication signals through 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.

2. The radio frequency module according to claim 1, characterized in that: The first switch is used to connect the Bluetooth module and the second switch when the satellite communication module is working, and the second switch is used to connect the third antenna and the first switch when the satellite communication module is working.

3. The radio frequency module according to claim 1 or 2, characterized in that: The first switch is used to connect the Bluetooth module and the second antenna when the satellite communication module is not working, and the second switch is used to connect the third antenna and the cellular module when the satellite communication module is not working.

4. The radio frequency module according to claim 1, characterized in that: 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.

5. The radio frequency module according to claim 4, characterized in that: 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 of the second switch is connected to the third connection of the first switch.

6. The radio frequency module according to claim 5, characterized in that: 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.

7. The radio frequency module according to claim 5 or 6, characterized in that: 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.

8. A control method for 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 to a first antenna, the satellite communication module being used to receive and send satellite communication signals through the first antenna, the Bluetooth module being connected to a second antenna through the first switch, the Bluetooth module being further connected to a third antenna through the first switch and the second switch, the Bluetooth module receiving and sending Bluetooth signals through the second antenna or the third antenna, the cellular module being connected to the third antenna, the cellular module being used to receive and send cellular communication signals through the third antenna, the first antenna and the second antenna not working at the same time, and the first antenna and the third antenna working at the same time, characterized in that: The control method comprises: When the satellite communication module is working, controlling the first switch so that the Bluetooth module is connected to the second switch, and controlling the second switch so that the third antenna is connected to the first switch; When the satellite communication module is not working, the first switch is controlled to connect the Bluetooth module to the second antenna, and the second switch is controlled to connect the third antenna to the cellular module.

9. The control method according to claim 8, characterized in that: 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 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 of the second switch is connected to the third connection of the first switch, and the control method further includes: When the satellite communication module is working, the first connection point of the first switch is controlled to be connected to the third connection point of the first switch, and the first connection point of the second switch is controlled to be connected to the third connection point of the second switch.

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

11. An electronic device, characterized in that: The electronic device includes a frame, a control module and a radio frequency module as described in any one of claims 1 to 7, 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, the first antenna and the third antenna work at the same time, and the control module is used to control the first switch and the second switch.

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