Radio frequency circuit, radio frequency circuit control method, and electronic device

Abstract

The present application relates to the field of wireless communications, and discloses a radio frequency circuit, a radio frequency circuit control method, and an electronic device, used for reducing the power consumption of short-range communication. The radio frequency circuit comprises: a processor, a first short-range communication chip, a second short-range communication chip, and a time-division multiplexing switch; the processor is used for sending coexistence policy information to the first short-range communication chip on the basis of a working state of the second short-range communication chip, wherein the coexistence policy information indicates whether the first short-range communication chip can preempt a first antenna in the working state; the working state of the second short-range communication chip comprises: whether the second short-range communication chip is wirelessly connected to another device, whether the second short-range communication chip transmits valid data to another device, and the throughput or time delay of transmitting the valid data; the first short-range communication chip is used for acquiring a data sending and receiving state of the second short-range communication chip, and controlling, on the basis of the data sending and receiving state and the coexistence policy information, the time-division multiplexing switch to connect the first antenna to the second short-range communication chip or the first short-range communication chip.

Description

Radio frequency circuit, radio frequency circuit control method and electronic device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on July 24, 2023, with application number 202310918293.0 and invention name “RF circuit, RF circuit control method and electronic device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of wireless communications, and in particular to a radio frequency circuit, a radio frequency circuit control method, and an electronic device. Background Art

[0003] Mobile phones and other electronic devices use short-range communication chips to amplify wireless fidelity (Wi-Fi) signals for Wi-Fi scanning. However, due to the high power consumption of high-performance short-range communication chips, they cannot scan for a long time.

[0004] Summary of the Invention

[0005] Embodiments of the present application provide a radio frequency circuit, a radio frequency circuit control method, and an electronic device for reducing power consumption in short-range communications.

[0006] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0007] In a first aspect, a radio frequency circuit is provided, comprising: a processor, a first short-range communication chip, a second short-range communication chip, and a time-division multiplexing switch; the second short-range communication chip is coupled to the first short-range communication chip, the second short-range communication chip is coupled to the second active end of the time-division multiplexing switch, the first short-range communication chip is coupled to the first active end and the control end of the time-division multiplexing switch, and the fixed end of the time-division multiplexing switch is used to couple to a first antenna; under the same working state, the power consumption of the first short-range communication chip is lower than that of the second short-range communication chip, and the second short-range communication chip and the first short-range communication chip support the same wireless communication protocol; the processor is used to send a signal to the first short-range communication chip according to the working state of the second short-range communication chip. The communication chip sends coexistence strategy information, which is used to indicate whether the first short-range communication chip can preempt the first antenna when the second short-range communication chip is in a working state. The working state of the second short-range communication chip includes: whether the second short-range communication chip is wirelessly connected to other devices, whether the second short-range communication chip transmits valid data with other devices, and the throughput or delay of the second short-range communication chip in transmitting valid data. The first short-range communication chip is used to obtain the status of the second short-range communication chip in sending and receiving data, and control the time-division multiplexing switch to connect the first antenna to the second short-range communication chip or the first short-range communication chip according to the status of the second short-range communication chip in sending and receiving data and the coexistence strategy information.

[0008] The radio frequency circuit, radio frequency circuit control method and electronic device provided in the embodiments of the present application, a high-power second short-range communication chip and a low-power first short-range communication chip, multiplex a first antenna through a time-division multiplexing switch. The processor sends different coexistence strategy information to the first short-range communication chip according to the different working states of the second short-range communication chip (for example, whether the second short-range communication chip is wirelessly connected to other devices, whether it transmits valid data with other devices, and the throughput or delay of transmitting valid data), that is, whether the first short-range communication chip seizes the multiplexed antenna. The first short-range communication chip controls the time-division multiplexing switch to connect the first antenna to the first short-range communication chip or the second short-range communication chip according to the state of the receiving and transmitting data of the second short-range communication chip and the coexistence strategy information. It is achieved that both business needs can be met and power consumption can be flexibly reduced.

[0009] In one possible implementation, the coexistence strategy information is: when the second short-range communication chip is turned off, or when the second short-range communication chip is turned on but not wirelessly connected to other devices, the first short-range communication chip takes over the first antenna; the first short-range communication chip is specifically used to: when the second short-range communication chip does not send any data, control the time-division multiplexing switch to connect the first antenna and the first short-range communication chip.

[0010] In this embodiment, when the first short-range communication chip preempts the first antenna, the first short-range communication chip can periodically scan for other devices via the first antenna. In this way, even if the second short-range communication chip is dormant, it can still perform periodic Wi-Fi scanning or Wi-Fi proximity discovery services via the first short-range communication chip. In addition, compared to the second short-range communication chip scanning for other devices via the first antenna, the second short-range communication chip's scanning for other devices via the first antenna consumes less power.

[0011] In one possible implementation, the coexistence strategy information is: when the second short-range communication chip is turned on, wirelessly connected to other devices but transmitting periodic keep-alive data, the second short-range communication chip and the first short-range communication chip periodically occupy the first antenna respectively, and the first short-range communication chip is specifically used to: when the second short-range communication chip transmits keep-alive data, control the time-division multiplexing switch to connect the first antenna and the second short-range communication chip; otherwise, control the time-division multiplexing switch to connect the first antenna and the first short-range communication chip.

[0012] In this embodiment, the second short-range communication chip and the first short-range communication chip periodically occupy the first antenna. When the second short-range communication chip occupies the first antenna, it can send keep-alive data via the first antenna to maintain the communication link alive. When the first short-range communication chip occupies the first antenna, it can scan for other devices via the first antenna to perform Wi-Fi scanning or Wi-Fi proximity discovery services.

[0013] In one possible implementation, the coexistence strategy information is: when the second short-range communication chip is turned on, wirelessly connected to other devices and the throughput of transmitting valid data is higher than the throughput threshold or the delay is lower than the delay threshold, the first short-range communication chip does not preempt the first antenna. The first short-range communication chip is specifically used to: regardless of whether the second short-range communication chip sends valid data, control the time-division multiplexing switch to connect the first antenna and the second short-range communication chip.

[0014] In this embodiment, if the data service being carried out by the second short-range communication chip has high requirements for throughput and latency, the first short-range communication chip will not preempt the first antenna, and the second short-range communication chip with better performance will occupy the first antenna to try to meet the data service's requirements for throughput and latency, thereby not reducing the performance of high-throughput or low-latency data services.

[0015] In one possible embodiment, the second short-range communication chip is also coupled to the second antenna, and the coexistence strategy information is: when the second short-range communication chip is turned on, wirelessly connected to other devices and the throughput of transmitting valid data is lower than the throughput threshold or the delay is higher than the delay threshold, if the second short-range communication chip sends valid data, the first short-range communication chip does not preempt the first antenna; if the second short-range communication chip receives valid data, the first short-range communication chip preempts the first antenna; the first short-range communication chip is specifically used for: when the second short-range communication chip sends valid data, controlling the time-division multiplexing switch to connect the first antenna to the second short-range communication chip; when the second short-range communication chip receives valid data, controlling the time-division multiplexing switch to connect the first antenna to the first short-range communication chip.

[0016] In this embodiment, when sending valid data, the second short-range communication chip occupies the first antenna and the second antenna to send valid data, thereby realizing transmit diversity; when receiving valid data, the second short-range communication chip occupies the second antenna to receive valid data, and the first short-range communication chip occupies the first antenna to receive valid data, that is, valid data is received in parallel by dual antennas, thereby realizing receive diversity.

[0017] In a second aspect, a radio frequency circuit control method is provided, which is applied to a circuit such as the first aspect and any embodiment thereof, the method comprising: the processor sending coexistence strategy information to the first short-range communication chip based on the working status of the second short-range communication chip, the coexistence strategy information being used to indicate whether the first short-range communication chip can preempt the first antenna when the second short-range communication chip is in the working status; the working status of the second short-range communication chip comprises: whether the second short-range communication chip is wirelessly connected to other devices, whether the second short-range communication chip transmits valid data with other devices, and the throughput or delay of the second short-range communication chip in transmitting valid data; the first short-range communication chip obtains the state of receiving and transmitting data of the second short-range communication chip, and controls the time-division multiplexing switch to connect the first antenna with the second short-range communication chip or the first short-range communication chip according to the state of receiving and transmitting data of the second short-range communication chip and the coexistence strategy information.

[0018] In one possible implementation, the coexistence strategy information is: when the second short-range communication chip is turned off, or the second short-range communication chip is turned on but not wirelessly connected to other devices, the first short-range communication chip preempts the first antenna, and according to the status of the second short-range communication chip receiving and sending data and the coexistence strategy information, controls the time-division multiplexing switch to connect the first antenna to the second short-range communication chip or the first short-range communication chip, including: when the second short-range communication chip does not send any data, controls the time-division multiplexing switch to connect the first antenna to the first short-range communication chip.

[0019] In one possible implementation, the coexistence strategy information is: when the second short-range communication chip is turned on, wirelessly connected to other devices but transmitting periodic keep-alive data, the second short-range communication chip and the first short-range communication chip periodically occupy the first antenna respectively, and according to the status of the second short-range communication chip sending and receiving data and the coexistence strategy information, control the time-division multiplexing switch to connect the first antenna with the second short-range communication chip or the first short-range communication chip, including: when the second short-range communication chip sends valid data, control the time-division multiplexing switch to connect the first antenna with the second short-range communication chip, otherwise, control the time-division multiplexing switch to connect the first antenna with the first short-range communication chip.

[0020] In one possible implementation, the coexistence strategy information is: when the second short-range communication chip is turned on, connected to other devices and the throughput of transmitting valid data is higher than the throughput threshold or the delay is lower than the delay threshold, the first short-range communication chip does not preempt the first antenna, and according to the status of the second short-range communication chip receiving and sending data and the coexistence strategy information, the time-division multiplexing switch is controlled to connect the first antenna to the second short-range communication chip or the first short-range communication chip, including: regardless of whether the second short-range communication chip sends valid data, the time-division multiplexing switch is controlled to connect the first antenna to the second short-range communication chip.

[0021] In a possible implementation, when the second short-range communication chip is turned on, connected to other devices and the throughput of transmitting valid data is lower than the throughput threshold or the delay is higher than the delay threshold, if the second short-range communication chip sends valid data, the first short-range communication chip does not preempt the first antenna; if the second short-range communication chip receives valid data, the first short-range communication chip preempts the first antenna; and according to the data transmission and reception status and coexistence strategy information of the second short-range communication chip, the time-division multiplexing switch is controlled to connect the first antenna with the second short-range communication chip or the first short-range communication chip, including: when the second short-range communication chip sends valid data, the time-division multiplexing switch is controlled to connect the first antenna with the second short-range communication chip; when the second short-range communication chip receives valid data, the time-division multiplexing switch is controlled to connect the first antenna with the first short-range communication chip.

[0022] According to a third aspect, a radio frequency circuit is provided, comprising: a processor, a first short-range communication chip, a second short-range communication chip and a time-division multiplexing switch; the second short-range communication chip is coupled to the first short-range communication chip, the second short-range communication chip is coupled to the second active end of the time-division multiplexing switch, the first short-range communication chip is coupled to the first active end and the control end of the time-division multiplexing switch, and the fixed end of the time-division multiplexing switch is used to couple to the first antenna; under the same working state, the power consumption of the first short-range communication chip is lower than that of the second short-range communication chip, and the second short-range communication chip and the first short-range communication chip support the same wireless communication protocol; the processor is used to send coexistence strategy information to the first short-range communication chip according to the working state of the second short-range communication chip, the coexistence strategy information is used to indicate whether the first short-range communication chip can preempt the first antenna under the working state of the second short-range communication chip; the coexistence strategy information includes: when the second short-range communication chip is turned off, or the second short-range communication chip is turned on but not wirelessly connected to other devices, The first short-range communication chip preempts the first antenna; when the second short-range communication chip is turned on, wirelessly connected to other devices but transmitting periodic keep-alive data, the second short-range communication chip and the first short-range communication chip periodically time-share the first antenna; when the second short-range communication chip is turned on, connected to other devices and the throughput of transmitting valid data is higher than the throughput threshold or the delay is lower than the delay threshold, the first short-range communication chip does not preempt the first antenna; when the second short-range communication chip is turned on, connected to other devices and the throughput of transmitting valid data is lower than the throughput threshold or the delay is higher than the delay threshold, if the second short-range communication chip sends valid data, the first short-range communication chip does not preempt the first antenna; if the second short-range communication chip receives valid data, the first short-range communication chip preempts the first antenna; the first short-range communication chip is used to obtain the status of transmitting and receiving data of the second short-range communication chip, and control the time-share multiplexing switch to connect the first antenna to the second short-range communication chip or the first short-range communication chip according to the status of transmitting and receiving data of the second short-range communication chip and the coexistence strategy information.

[0023] In one possible implementation, the coexistence strategy information is: when the second short-range communication chip is turned off, or the second short-range communication chip is turned on but not wirelessly connected to other devices, the first short-range communication chip preempts the first antenna; the first short-range communication chip is specifically used to: when the second short-range communication chip does not send any data, control the time-division multiplexing switch to connect the first antenna and the first short-range communication chip.

[0024] In one possible implementation, the coexistence strategy information is as follows: when the second short-range communication chip is turned on and wirelessly connected to other devices but periodically transmits keep-alive data, the second short-range communication chip and the first short-range communication chip periodically occupy the first antenna, respectively. The first short-range communication chip is specifically configured to: when the second short-range communication chip transmits keep-alive data, control the time-division multiplexing switch to connect the first antenna to the second short-range communication chip; otherwise, control the time-division multiplexing switch to connect the first antenna to the first short-range communication chip. This allows the second short-range communication chip and the first short-range communication chip to periodically time-share the first antenna.

[0025] In one possible implementation, the coexistence strategy information is: when the second short-range communication chip is turned on, wirelessly connected to other devices and the throughput of transmitting valid data is higher than the throughput threshold or the delay is lower than the delay threshold, the first short-range communication chip does not preempt the first antenna. The first short-range communication chip is specifically used to: regardless of whether the second short-range communication chip sends valid data, control the time-division multiplexing switch to connect the first antenna and the second short-range communication chip.

[0026] In one possible embodiment, the second short-range communication chip is also coupled to the second antenna, and the coexistence strategy information is: when the second short-range communication chip is turned on, wirelessly connected to other devices and the throughput of transmitting valid data is lower than the throughput threshold or the delay is higher than the delay threshold, if the second short-range communication chip sends valid data, the first short-range communication chip does not preempt the first antenna; if the second short-range communication chip receives valid data, the first short-range communication chip preempts the first antenna; the first short-range communication chip is specifically used for: when the second short-range communication chip sends valid data, controlling the time-division multiplexing switch to connect the first antenna to the second short-range communication chip; when the second short-range communication chip receives valid data, controlling the time-division multiplexing switch to connect the first antenna to the first short-range communication chip.

[0027] In a fourth aspect, a radio frequency circuit control method is provided, which is applied to a circuit such as the third aspect and any embodiment thereof, the method comprising: a processor sending coexistence strategy information to a first short-range communication chip according to the working state of a second short-range communication chip, the coexistence strategy information being used to indicate whether the first short-range communication chip can seize the first antenna when the second short-range communication chip is in the working state; the working state of the second short-range communication chip comprises: whether the second short-range communication chip is wirelessly connected to other devices, whether the second short-range communication chip transmits valid data with other devices, and the throughput or delay of the second short-range communication chip in transmitting valid data; the coexistence strategy information comprises: when the second short-range communication chip is turned off, or the second short-range communication chip is turned on but not wirelessly connected to other devices, the first short-range communication chip seizes the first antenna; when the second short-range communication chip is turned on, wirelessly connected to other devices but transmitting periodic data, When active data is transmitted, the second short-range communication chip and the first short-range communication chip periodically time-share the first antenna; when the second short-range communication chip is turned on, connected to other devices and the throughput of transmitting valid data is higher than the throughput threshold or the delay is lower than the delay threshold, the first short-range communication chip does not preempt the first antenna; when the second short-range communication chip is turned on, connected to other devices and the throughput of transmitting valid data is lower than the throughput threshold or the delay is higher than the delay threshold, if the second short-range communication chip sends valid data, the first short-range communication chip does not preempt the first antenna; if the second short-range communication chip receives valid data, the first short-range communication chip preempts the first antenna; the first short-range communication chip obtains the status of sending and receiving data of the second short-range communication chip, and controls the time-share multiplexing switch to connect the first antenna to the second short-range communication chip or the first short-range communication chip according to the status of sending and receiving data of the second short-range communication chip and the coexistence strategy information.

[0028] In one possible implementation, the coexistence strategy information is: when the second short-range communication chip is turned off, or the second short-range communication chip is turned on but not wirelessly connected to other devices, the first short-range communication chip preempts the first antenna, and according to the status of the second short-range communication chip receiving and sending data and the coexistence strategy information, controls the time-division multiplexing switch to connect the first antenna to the second short-range communication chip or the first short-range communication chip, including: when the second short-range communication chip does not send any data, controls the time-division multiplexing switch to connect the first antenna to the first short-range communication chip.

[0029] In one possible implementation, the coexistence strategy information is: when the second short-range communication chip is turned on, wirelessly connected to other devices but transmitting periodic keep-alive data, the second short-range communication chip and the first short-range communication chip periodically occupy the first antenna respectively, and according to the status of the second short-range communication chip sending and receiving data and the coexistence strategy information, control the time-division multiplexing switch to connect the first antenna with the second short-range communication chip or the first short-range communication chip, including: when the second short-range communication chip sends valid data, control the time-division multiplexing switch to connect the first antenna with the second short-range communication chip, otherwise, control the time-division multiplexing switch to connect the first antenna with the first short-range communication chip.

[0030] In one possible implementation, the coexistence strategy information is: when the second short-range communication chip is turned on, connected to other devices and the throughput of transmitting valid data is higher than the throughput threshold or the delay is lower than the delay threshold, the first short-range communication chip does not preempt the first antenna, and according to the status of the second short-range communication chip receiving and sending data and the coexistence strategy information, the time-division multiplexing switch is controlled to connect the first antenna to the second short-range communication chip or the first short-range communication chip, including: regardless of whether the second short-range communication chip sends valid data, the time-division multiplexing switch is controlled to connect the first antenna to the second short-range communication chip.

[0031] In a possible implementation, when the second short-range communication chip is turned on, connected to other devices and the throughput of transmitting valid data is lower than the throughput threshold or the delay is higher than the delay threshold, if the second short-range communication chip sends valid data, the first short-range communication chip does not preempt the first antenna; if the second short-range communication chip receives valid data, the first short-range communication chip preempts the first antenna; and according to the data transmission and reception status and coexistence strategy information of the second short-range communication chip, the time-division multiplexing switch is controlled to connect the first antenna with the second short-range communication chip or the first short-range communication chip, including: when the second short-range communication chip sends valid data, the time-division multiplexing switch is controlled to connect the first antenna with the second short-range communication chip; when the second short-range communication chip receives valid data, the time-division multiplexing switch is controlled to connect the first antenna with the first short-range communication chip.

[0032] In a fifth aspect, an electronic device is provided, comprising a coupled antenna and a radio frequency circuit as described in the first aspect and any embodiment thereof, or comprising a coupled antenna and a radio frequency circuit as described in the third aspect and any embodiment thereof.

[0033] In the sixth aspect, a computer-readable storage medium is provided, comprising instructions, which, when executed on an electronic device, cause the electronic device to execute the method as described in the second aspect and any embodiment thereof, or cause the electronic device to execute the method as described in the fourth aspect and any embodiment thereof.

[0034] In the seventh aspect, a computer program product comprising instructions is provided. When the instructions are run on the above-mentioned electronic device, the electronic device executes the method as described in the second aspect and any embodiment thereof, or the electronic device executes the method as described in the fourth aspect and any embodiment thereof.

[0035] In an eighth aspect, a chip system is provided, comprising a processor for supporting an electronic device in implementing the functions described in the second or fourth aspects above. In one possible design, the device further comprises an interface circuit, which can be used to receive signals from other devices (e.g., a memory) or send signals to other devices (e.g., a communication interface). The chip system may include a chip and may also include other discrete components.

[0036] The technical effects of the second to eighth aspects refer to the technical effects of the first aspect and any of its embodiments and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] FIG1 is a schematic diagram of a Wi-Fi fence service scenario provided in an embodiment of the present application;

[0038] FIG2 is a schematic diagram of a Wi-Fi proximity discovery service scenario provided by an embodiment of the present application;

[0039] FIG3 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;

[0040] FIG4 is a schematic structural diagram of another electronic device provided in an embodiment of the present application;

[0041] FIG5 is a schematic structural diagram of another electronic device provided in an embodiment of the present application;

[0042] FIG6 is a flow chart of a radio frequency circuit control method provided in an embodiment of the present application;

[0043] FIG7 is a schematic structural diagram of a chip system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0044] First, some concepts involved in this application are described.

[0045] The terms "first", "second", etc. involved in the embodiments of the present application are only used to distinguish features of the same type and cannot be understood as indicating relative importance, quantity, order, etc.

[0046] The terms "exemplary" or "for example" in the embodiments of this application are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0047] The terms "coupling" and "connection" involved in the embodiments of this application should be understood in a broad sense. For example, they may refer to a physical direct connection, or an indirect connection achieved through electronic devices, such as a connection achieved through resistors, inductors, capacitors or other electronic devices.

[0048] To support Wi-Fi fence services or Wi-Fi proximity discovery services, electronic devices need to periodically perform Wi-Fi scans to determine whether there are other devices nearby, such as access points (APs) providing Wi-Fi networks, other electronic devices logged in with the same account, etc.

[0049] For example, as shown in Figure 1, in a Wi-Fi fence service scenario, when an electronic device 10 enters the range of a cellular fence, a periodic Wi-Fi scan is triggered to determine whether there is an AP 20 nearby. Once the electronic device 10 enters the range of the Wi-Fi fence, it determines that it has entered the Wi-Fi fence according to the Wi-Fi fence algorithm. Electronic devices use short-range communication chips to transmit and receive Wi-Fi signals. However, high-performance short-range communication chips consume high power and cannot perform long-term scanning.

[0050] As shown in Figure 2, in the Wi-Fi proximity discovery service scenario (also known as the super terminal scenario), the various electronic devices of the smart interconnection are discovered and networked, and they need to complete communication with each other after the electronic devices are in a dormant state. When the electronic device enters the dormant state, the short-range communication chip also enters the dormant state and cannot receive broadcast messages from other electronic devices in the Wi-Fi network, resulting in other electronic devices logged in with the same account being unable to discover the dormant electronic device. In addition, when the short-range communication chip enters the dormant state, it will stop communicating with the cloud server, resulting in the link between the electronic device and the cloud server being disconnected, and the cloud message cannot be received in time. The electronic device needs to periodically send keep-alive data to keep the communication link alive, and the electronic device must also periodically perform Wi-Fi scans in the dormant state to discover other electronic devices in the Wi-Fi network.

[0051] Therefore, an embodiment of the present application provides a radio frequency circuit and an electronic device, which uses a second short-range communication chip and a first short-range communication chip for short-range communication. The second short-range communication chip has better performance and higher power consumption. The performance of the first short-range communication chip is worse than that of the second short-range communication chip, but the power consumption is relatively low. Due to the internal space limitations of the electronic device, it is impossible to provide a separate antenna for the newly added first short-range communication chip, so the second short-range communication chip and the first short-range communication chip reuse one antenna through a time-division multiplexing switch. The first short-range communication chip is responsible for controlling the time-division multiplexing switch to connect the second short-range communication chip or the first short-range communication chip to the antenna. Even if the second short-range communication chip is dormant, short-range communication can be performed through the low-power first short-range communication chip. For services with higher performance requirements, the second short-range communication chip is responsible for communication to provide better communication performance. For services with lower performance requirements (such as keeping the communication link alive during sleep), the first short-range communication chip is responsible for communication to reduce power consumption.

[0052] The electronic devices involved in the embodiments of the present application may be mobile phones, tablets, laptop computers, etc., without specific limitation.

[0053] As shown in Figures 3 and 4, an embodiment of the present application provides an electronic device 10, comprising: a radio frequency circuit 100, a first antenna ANT1, and a second antenna ANT2. The radio frequency circuit 100 includes a processor 101, a memory 102, a first short-range communication chip 103, a second short-range communication chip 104, and a time-division multiplexing switch 105. Figure 3 shows a structure of a mid-to-low-end electronic device, in which the first short-range communication chip 103 and the second short-range communication chip 104 are internally integrated with front-end modules (FEM). The FEM is used to power amplify the radio frequency signal of short-range communication (Wi-Fi or Bluetooth (BT)). Optionally, as shown in Figure 4, in some embodiments (such as high-end electronic devices), the radio frequency circuit 100 also includes a first front-end module (FEM) 106 and a second FEM 107 externally disposed on the outside of the short-range communication chip to provide better amplification performance.

[0054] The second short-range communication chip 104 and the first short-range communication chip 103 support the same wireless communication protocol, such as supporting Wi-Fi communication protocol, Bluetooth (bluetooth, BT) communication protocol, etc., which are not limited in this application. The performance of the second short-range communication chip is better than that of the first short-range communication chip. For example, the second short-range communication chip supports multiple input and multiple output (multiple in multiple out, MIMO), and the first short-range communication chip supports single input and single output (single in single out, SISO). However, under the same working state, the power consumption of the first short-range communication chip is lower than that of the second short-range communication chip. The second short-range communication chip can be a high-end short-range communication chip or a flagship short-range communication chip, and the first short-range communication chip can be a mid-to-low-end short-range communication chip.

[0055] The second short-range communication chip 104 is coupled to the first short-range communication chip 103. The second short-range communication chip 104 is coupled to the second active terminal of the time-division multiplexing switch 105. The first short-range communication chip is coupled to the first active terminal and the control terminal of the time-division multiplexing switch. The fixed terminal of the time-division multiplexing switch 105 is used to couple to the first antenna ANT1. Optionally, as shown in FIG4 , in some embodiments, the fixed terminal of the time-division multiplexing switch 105 is coupled to the first antenna ANT1 via the first FEM 106.

[0056] The memory 102 may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. The non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM bus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0057] The memory 102 stores instructions, and when the processor 101 executes the instructions, the radio frequency circuit control method involved in the embodiment of the present application can be executed.

[0058] Processor 101 can be a chip. For example, it can be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a central processor unit (CPU), a network processor (NP), a digital signal processor (DSP), a microcontroller unit (MCU), a programmable logic device (PLD), or other integrated chips. Processor 101 is also called an application processor.

[0059] As shown in Figure 5, the software running in the processor 101 includes an application (APP) 1011, a scene recognition module 1012, a coexistence service module 1013 and a transmission link control module 1014. Among them, the application (APP) 1011 can refer to an APP that performs data services (such as low-throughput data services, high-throughput data services, Wi-Fi fence services or Wi-Fi proximity discovery services) or transmits valid data, such as a data transmission assistant, a music player, etc. The scene recognition module 1012 is used to identify the current working state of the electronic device. For the specific working state, refer to step S101 shown in Figure 6. The coexistence service module 1013 is used to generate coexistence strategy information according to the working state of the second short-range communication chip, and send the coexistence strategy information to the first short-range communication chip to avoid affecting the data transmission of the second short-range communication chip. Specifically refer to step S101 shown in Figure 6. The transmission link control module 1014 is used to determine which short-range communication chip to use for data transmission based on the operating status of the second short-range communication chip. For example, the high-throughput data service of Wi-Fi is performed by the second short-range communication chip, and the low-throughput data service of Wi-Fi is performed by the first short-range communication chip.

[0060] The first short-range communication chip 103 includes a first media access control (MAC) 1031, a first baseband 1032, and a coexistence circuit 1033. The software running in the first short-range communication chip 103 includes a scanning module 1035 and a coexistence policy information module 1034. The coexistence policy information module 1034 is configured to receive and store coexistence policy information from the processor 101, convert the coexistence policy information into hardware configuration parameters, and then set the hardware configuration parameters in the coexistence circuit 1033. The coexistence circuit 1033 is configured to obtain the data transmission and reception status of the second short-range communication chip 104 and, based on the data transmission and reception status of the second short-range communication chip 104 and the coexistence policy information, control the time-division multiplexing switch to connect the fixed end to the first active end or the second active end, thereby connecting the first antenna ANT1 to the first short-range communication chip 103 or the second short-range communication chip 104. For details, see step S102 shown in FIG. The scanning module 1035 receives a start command from the APP 1011 to start scanning (for example, scanning in a Wi-Fi fence service or a Wi-Fi proximity discovery service). Then, the scanning module 1035 sends an antenna preemption command to the coexistence strategy information module 1034 and a start scanning command to the first MAC 1031. After the coexistence circuit 1033 successfully preempts the first antenna ANT1, it instructs the first baseband 1032 that the first antenna ANT1 is currently available, and the first baseband 1032 starts scanning (for example, Wi-Fi) through the first antenna ANT1.

[0061] The second short-range communication chip 104 includes a second MAC 1041 and a second baseband 1042. The first MAC 1031 and the second MAC 1041 are used for channel management, connection control, quality of service, power control, etc. The first baseband 1032 and the second baseband 1042 are used for modulation, demodulation, encoding, decoding, etc. of wireless signals.

[0062] As shown in FIG6 , the radio frequency circuit control method provided in an embodiment of the present application includes:

[0063] S101: The processor sends coexistence strategy information to the first short-range communication chip according to the working status of the second short-range communication chip.

[0064] In different operating states of the second short-range communication chip, the processor sends different coexistence strategy information to the first short-range communication chip, and the coexistence strategy information can be stored in the register of the first short-range communication chip. The operating state of the second short-range communication chip includes whether the second short-range communication chip is wirelessly connected to other devices, whether the second short-range communication chip transmits valid data with other devices, and the throughput or latency of the second short-range communication chip transmitting valid data. Exemplary, the various possible operating states of the second short-range communication chip are shown in Table 1.

[0065] Table 1

[0066] The coexistence strategy information is used to indicate whether the first short-range communication chip can preempt the first antenna in each working state of the first short-range communication chip. For example, a possible coexistence strategy information is shown in Table 2.

[0067] Table 2

[0068] S102: The first short-range communication chip obtains the state of data transmission and reception of the second short-range communication chip, and controls the time-division multiplexing switch to connect the first antenna to the first short-range communication chip or the second short-range communication chip according to the state of data transmission and reception of the second short-range communication chip and coexistence strategy information.

[0069] For the mid-to-low-end electronic devices shown in Figure 3, the short-range communication chip uses a built-in FEM, which usually outputs radio frequency signals. Therefore, the second short-range communication chip can send the status of the second short-range communication chip's data transmission and reception to the first short-range communication chip via a general purpose input and output (GPIO) port. The status of the second short-range communication chip's data transmission and reception can be represented by high and low levels. The first short-range communication chip outputs a control signal to the first FEM to control the time-division multiplexing switch to connect the first antenna to the first short-range communication chip or the second short-range communication chip. For example, the second short-range communication chip can have four GPIO ports WifiTx, WifiRx, BtTx, and BtRx, where WifiTx is high, indicating that the second short-range communication chip is sending Wi-Fi signals; WifiRx is high, indicating that the second short-range communication chip is receiving Wi-Fi signals; BtTx is high, indicating that the second short-range communication chip is sending Bluetooth signals; BtRx is high, indicating that the second short-range communication chip is receiving Bluetooth signals; and WifiTx, WifiRx, BtTx, and BtRx are all low, indicating that the second short-range communication chip is not transmitting valid data.

[0070] For the high-end electronic device shown in Figure 4, the short-range communication chip uses an external FEM. In addition to outputting RF signals, it also controls the first FEM and the second FEM via the GPIO interface that controls the FEM. Therefore, the GPIO interface of the second short-range communication chip that controls the first FEM can be connected to the first short-range communication chip. The first short-range communication chip determines the state of the second short-range communication chip's data transmission and reception based on the first control signal output from the GPIO interface that controls the first FEM, and outputs a second control signal to the first FEM to control the time-division multiplexing switch to connect the first antenna to the first short-range communication chip or the second short-range communication chip. For example, assume that the GPIO interface of the second short-range communication chip that controls the first FEM includes four GPIO ports: PA_EN, LNA_EN, BT_EN, and SEL4. The meanings of these four GPIO ports are shown in Table 3.

[0071] Table 3

[0072] If the coexistence strategy information sent by the processor is: when the second short-range communication chip is turned off (sleep), or when the second short-range communication chip is turned on but not wirelessly connected to other devices (i.e., no connection scenario), the first short-range communication chip seizes the first antenna. At this time, when it is detected that the second short-range communication chip does not send any data, the first short-range communication chip outputs a control signal to the time-division multiplexing switch to control the time-division multiplexing switch to connect the first antenna to the first short-range communication chip. This allows the first short-range communication chip to seize the first antenna, and the first short-range communication chip can periodically scan other devices through the first antenna, so that even if the second short-range communication chip is dormant, periodic Wi-Fi scanning or Wi-Fi proximity discovery services can be performed through the first short-range communication chip. In addition, compared to the second short-range communication chip scanning other devices through the first antenna, the second short-range communication chip has lower power consumption when scanning other devices through the first antenna.

[0073] If the coexistence strategy information sent by the processor is: when the second short-range communication chip is turned on, wirelessly connected to other devices but transmitting periodic keep-alive data (i.e., a normal connection scenario), the second short-range communication chip and the first short-range communication chip periodically occupy the first antenna respectively. Periodically, when it is detected that the second short-range communication chip transmits keep-alive data, the first short-range communication chip outputs a control signal to the time-division multiplexing switch to control the time-division multiplexing switch to connect the first antenna to the second short-range communication chip. Otherwise, the first short-range communication chip outputs a control signal to the time-division multiplexing switch to control the time-division multiplexing switch to connect the first antenna to the first short-range communication chip. This enables the second short-range communication chip and the first short-range communication chip to periodically time-share the first antenna. When the second short-range communication chip occupies the first antenna, keep-alive data can be sent through the first antenna to keep the communication link alive; when the first short-range communication chip occupies the first antenna, it can scan other devices through the first antenna.

[0074] For example, in a Wi-Fi scenario, the second short-range communication chip periodically occupies the first antenna and the second antenna (i.e., MIMO) to send null data frames to keep the communication link alive; the second short-range communication chip can periodically perform Wi-Fi scanning or Wi-Fi proximity discovery services through the first antenna. Specifically, when the second short-range communication chip needs to occupy the first antenna and the second antenna (i.e., MIMO) to send null data frames, the first short-range communication chip outputs a control signal to the time-division multiplexing switch to control the time-division multiplexing switch to connect the first antenna to the second short-range communication chip; when the second short-range communication chip stops sending null data frames, the first short-range communication chip outputs a control signal to the time-division multiplexing switch to control the time-division multiplexing switch to connect the first antenna to the first short-range communication chip, and the second short-range communication chip can periodically scan for other devices through the first antenna.

[0075] For another example, in a BT scenario, the second short-range communication chip periodically occupies the first antenna or the second antenna (i.e., SISO) to send heartbeat packets to keep the communication link alive; the second short-range communication chip can periodically scan for BT devices through the first antenna. Specifically, when the second short-range communication chip needs to occupy the first antenna (i.e., SISO) to send a heartbeat packet, the first short-range communication chip outputs a control signal to the time-division multiplexing switch to control the time-division multiplexing switch to connect the first antenna to the first short-range communication chip; when the first short-range communication chip stops sending the heartbeat packet, the first short-range communication chip outputs a control signal to the time-division multiplexing switch to control the time-division multiplexing switch to connect the fixed end to the first active end, and the second short-range communication chip can periodically scan for other BT devices through the first antenna.

[0076] If the coexistence strategy information sent by the processor is: when the second short-range communication chip is turned on, wirelessly connected to other devices, and the throughput of transmitting valid data is higher than the throughput threshold or the latency is lower than the latency threshold (i.e., high-throughput scenario or low-latency scenario), the first short-range communication chip does not preempt the first antenna. At this time, regardless of whether the second short-range communication chip sends valid data, the first short-range communication chip outputs a control signal to the time-division multiplexing switch to control the time-division multiplexing switch to always connect the first antenna to the second short-range communication chip. This does not reduce the performance of high-throughput or low-latency data services.

[0077] If the coexistence strategy information sent by the processor is: when the second short-range communication chip is turned on, wirelessly connected to other devices and the throughput of transmitting valid data is lower than the throughput threshold or the delay is higher than the delay threshold (that is, low throughput scenario), if the second short-range communication chip sends valid data, the first short-range communication chip does not preempt the first antenna, that is, the second short-range communication chip uses the first antenna and the second antenna to send valid data to realize MIMO sending of valid data; if the second short-range communication chip receives valid data, the first short-range communication chip preempts the first antenna, that is, the first short-range communication chip receives valid data through the first antenna, and the second short-range communication chip receives valid data through the second antenna, realizing dual-chip parallel reception. At this time, when the first short-range communication chip detects that the second short-range communication chip is sending valid data, the first short-range communication chip outputs a control signal to the time-division multiplexing switch to control the time-division multiplexing switch to connect the first antenna to the second short-range communication chip. When the first short-range communication chip detects that the second short-range communication chip is receiving valid data, the first short-range communication chip outputs a control signal to the time-division multiplexing switch to control the time-division multiplexing switch to connect the first antenna to the first short-range communication chip. When sending valid data, the second short-range communication chip uses the first and second antennas to send valid data, achieving transmit diversity. When receiving valid data, the second short-range communication chip uses the second antenna to receive valid data, while the first short-range communication chip uses the first antenna to receive valid data. That is, valid data is received in parallel by the two antennas, achieving receive diversity.

[0078] The radio frequency circuit, radio frequency circuit control method and electronic device provided in the embodiments of the present application, a high-power second short-range communication chip and a low-power first short-range communication chip, multiplex a first antenna through a time-division multiplexing switch. The processor sends different coexistence strategy information to the first short-range communication chip according to the different working states of the second short-range communication chip (for example, whether the second short-range communication chip is wirelessly connected to other devices, whether it transmits valid data with other devices, and the throughput or delay of the second short-range communication chip in transmitting valid data), that is, whether the first short-range communication chip seizes the multiplexed antenna. The first short-range communication chip controls the time-division multiplexing switch to connect the first antenna to the first short-range communication chip or the second short-range communication chip according to the state of the second short-range communication chip receiving and transmitting data and the coexistence strategy information. It is achieved that both business needs can be met and power consumption can be flexibly reduced.

[0079] As shown in Figure 7, an embodiment of the present application also provides a chip system. The chip system 70 includes at least one processor 701 and at least one interface circuit 702. At least one processor 701 and at least one interface circuit 702 can be interconnected via lines. The processor 701 is used to support the electronic device to implement the various steps in the above method embodiment, such as the method shown in Figure 6, and the at least one interface circuit 702 can be used to receive signals from other devices (such as a memory) or send signals to other devices (such as a communication interface). The chip system may include chips and may also include other discrete devices.

[0080] An embodiment of the present application also provides a computer-readable storage medium, which includes instructions. When the instructions are executed on the above-mentioned electronic device, the electronic device executes each step in the above-mentioned method embodiment, such as executing the method shown in Figure 6.

[0081] An embodiment of the present application further provides a computer program product comprising instructions, which, when executed on the electronic device, enables the electronic device to execute each step in the above method embodiment, such as executing the method shown in FIG6 .

[0082] Regarding the technical effects of the chip system, computer-readable storage medium, and computer program product, refer to the technical effects of the previous method embodiments.

[0083] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0084] Those skilled in the art will appreciate that the modules and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0085] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and modules described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0086] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the modules is merely a logical function division. In actual implementation, there may be other division methods, such as multiple modules or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0087] The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, that is, they may be located on a single device or distributed across multiple devices. Some or all of the modules may be selected to achieve the purpose of this embodiment based on actual needs.

[0088] In addition, the functional modules in the various embodiments of the present application may be integrated into one device, or each module may exist physically separately, or two or more modules may be integrated into one device.

[0089] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware, or any combination thereof. When implemented using a software program, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state disk (SSD)).

[0090] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A radio frequency circuit, characterized in that: include: A processor, a first short-range communication chip, a second short-range communication chip and a time-division multiplexing switch; the second short-range communication chip is coupled to the first short-range communication chip, the second short-range communication chip is coupled to the second active end of the time-division multiplexing switch, the first short-range communication chip is coupled to the first active end and the control end of the time-division multiplexing switch, and the fixed end of the time-division multiplexing switch is used to couple to a first antenna; under the same working state, the power consumption of the first short-range communication chip is lower than that of the second short-range communication chip, and the second short-range communication chip and the first short-range communication chip support the same wireless communication protocol; The processor is used to send coexistence strategy information to the first short-range communication chip according to the working state of the second short-range communication chip, wherein the coexistence strategy information is used to indicate whether the first short-range communication chip can preempt the first antenna in the working state of the second short-range communication chip; The working state of the second short-range communication chip includes: whether the second short-range communication chip is wirelessly connected to other devices, whether the second short-range communication chip transmits valid data with other devices, and the throughput or latency of the second short-range communication chip in transmitting valid data; The first short-range communication chip is used to obtain the state of sending and receiving data of the second short-range communication chip, and control the time-division multiplexing switch to connect the first antenna to the second short-range communication chip or the first short-range communication chip according to the state of sending and receiving data of the second short-range communication chip and the coexistence strategy information.

2. The radio frequency circuit according to claim 1, characterized in that: The coexistence strategy information is: when the second short-range communication chip is turned off, or the second short-range communication chip is turned on but not wirelessly connected to other devices, the first short-range communication chip preempts the first antenna; the first short-range communication chip is specifically used for: When the second short-range communication chip does not send any data, the time division multiplexing switch is controlled to connect the first antenna and the first short-range communication chip.

3. The radio frequency circuit according to claim 1, characterized in that: The coexistence strategy information is: when the second short-range communication chip is turned on and wirelessly connected to other devices but periodically transmits keep-alive data, the second short-range communication chip and the first short-range communication chip periodically occupy the first antenna respectively, and the first short-range communication chip is specifically used for: When the second short-range communication chip transmits keep-alive data, the time-division multiplexing switch is controlled to connect the first antenna to the second short-range communication chip; otherwise, the time-division multiplexing switch is controlled to connect the first antenna to the first short-range communication chip.

4. The radio frequency circuit according to claim 1, characterized in that: The coexistence strategy information is: when the second short-range communication chip is turned on, wirelessly connected to other devices and the throughput of transmitting valid data is higher than the throughput threshold or the delay is lower than the delay threshold, the first short-range communication chip does not preempt the first antenna, and the first short-range communication chip is specifically used for: Regardless of whether the second short-range communication chip sends valid data, the time-division multiplexing switch is controlled to connect the first antenna and the second short-range communication chip.

5. The radio frequency circuit according to claim 1, characterized in that: The second short-range communication chip is also coupled to the second antenna, and the coexistence strategy information is: when the second short-range communication chip is turned on, wirelessly connected to other devices and the throughput of transmitting valid data is lower than the throughput threshold or the delay is higher than the delay threshold, if the second short-range communication chip sends valid data, the first short-range communication chip does not occupy the first antenna, if the second short-range communication chip receives valid data, the first short-range communication chip occupies the first antenna, and the first short-range communication chip is specifically used for: When the second short-range communication chip sends valid data, the time-division multiplexing switch is controlled to connect the first antenna and the second short-range communication chip; when the second short-range communication chip receives valid data, the time-division multiplexing switch is controlled to connect the first antenna and the first short-range communication chip.

6. A radio frequency circuit control method, characterized in that: Applied to the radio frequency circuit according to any one of claims 1 to 5, the method comprises: The processor sends coexistence strategy information to the first short-range communication chip according to the working state of the second short-range communication chip, where the coexistence strategy information is used to indicate whether the first short-range communication chip can occupy the first antenna under the working state of the second short-range communication chip; the working state of the second short-range communication chip includes: whether the second short-range communication chip is wirelessly connected to other devices, whether the second short-range communication chip transmits valid data with other devices, and the throughput or delay of the second short-range communication chip in transmitting valid data; The first short-range communication chip obtains the state of sending and receiving data of the second short-range communication chip, and controls the time-division multiplexing switch to connect the first antenna to the second short-range communication chip or the first short-range communication chip according to the state of sending and receiving data of the second short-range communication chip and the coexistence strategy information.

7. The method according to claim 6, characterized in that The coexistence strategy information is: when the second short-range communication chip is turned off, or the second short-range communication chip is turned on but not wirelessly connected to other devices, the first short-range communication chip preempts the first antenna, and according to the state of the second short-range communication chip receiving and sending data and the coexistence strategy information, controlling the time-division multiplexing switch to connect the first antenna to the second short-range communication chip or the first short-range communication chip includes: When the second short-range communication chip does not send any data, the time division multiplexing switch is controlled to connect the first antenna and the first short-range communication chip.

8. The method according to claim 6, characterized in that The coexistence strategy information is: when the second short-range communication chip is turned on and wirelessly connected to other devices but transmits periodic keep-alive data, the second short-range communication chip and the first short-range communication chip periodically occupy the first antenna respectively, and according to the state of the second short-range communication chip sending and receiving data and the coexistence strategy information, controlling the time-division multiplexing switch to connect the first antenna to the second short-range communication chip or the first short-range communication chip, including: When the second short-range communication chip sends valid data, the time-division multiplexing switch is controlled to connect the first antenna to the second short-range communication chip; otherwise, the time-division multiplexing switch is controlled to connect the first antenna to the first short-range communication chip.

9. The method according to claim 6, characterized in that The coexistence strategy information is: when the second short-range communication chip is turned on, wirelessly connected to other devices and the throughput of transmitting valid data is higher than the throughput threshold or the delay is lower than the delay threshold, the first short-range communication chip does not preempt the first antenna, and according to the state of the second short-range communication chip sending and receiving data and the coexistence strategy information, controlling the time-division multiplexing switch to connect the first antenna to the second short-range communication chip or the first short-range communication chip includes: Regardless of whether the second short-range communication chip sends valid data, the time-division multiplexing switch is controlled to connect the first antenna and the second short-range communication chip.

10. The method according to claim 6, characterized in that When the second short-range communication chip is turned on, wirelessly connected to other devices and the throughput of transmitting valid data is lower than the throughput threshold or the delay is higher than the delay threshold, if the second short-range communication chip sends valid data, the first short-range communication chip does not preempt the first antenna, if the second short-range communication chip receives valid data, the first short-range communication chip preempts the first antenna, and according to the state of the second short-range communication chip sending and receiving data and the coexistence strategy information, controlling the time-division multiplexing switch to conduct the first antenna with the second short-range communication chip or the first short-range communication chip, including: When the second short-range communication chip sends valid data, the time-division multiplexing switch is controlled to connect the first antenna and the second short-range communication chip; when the second short-range communication chip receives valid data, the time-division multiplexing switch is controlled to connect the first antenna and the first short-range communication chip.

11. An electronic device, characterized in that: The invention comprises a coupled antenna and a radio frequency circuit as claimed in any one of claims 1 to 5.

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