WO2018027984A1

WO2018027984A1 - Terminal device and switching method

Info

Publication number: WO2018027984A1
Application number: PCT/CN2016/095033
Authority: WO
Inventors: 王同波; 许浩维; 黄建仁; 黄玉宝; 齐家红
Original assignee: 华为技术有限公司
Priority date: 2016-08-12
Filing date: 2016-08-12
Publication date: 2018-02-15
Also published as: CN109076640A; CN109076640B

Abstract

Provided are a terminal device and a switching method, which relate to the field of communications, and can always keep a WiFi module in an MIMO state to receive a WiFi 2G signal without adding a large-size antenna. The terminal device comprises a WiFi module, a cellular module, a switching circuit, a first antenna, a second antenna and a third antenna, wherein the WiFi module is electrically connected to the first antenna; the WiFi module and the cellular module are respectively electrically connected to the switching circuit; the switching circuit is respectively electrically connected to the second antenna and the third antenna; and when the cellular module and the WiFi module work simultaneously, if the cellular module is electrically connected to the second antenna via the switching circuit, the WiFi module is electrically connected to the third antenna via the switching circuit.

Description

Terminal device and switching method

Technical field

The present application relates to the field of communications, and in particular, to a terminal device and a handover method.

Background technique

With the rapid growth and popularity of wireless fidelity (English full name: Wireless Fidelity, English abbreviation: WiFi) technology, more and more mobile terminal users use WiFi technology for communication. Generally, a mobile terminal uses a multi-input multi-output (MIMO) technology to maintain a clear and powerful WiFi signal, which greatly reduces the reception of WiFi to a mobile terminal in the case of data congestion. The effect of the signal improves the quality of the received signal. However, mobile terminals need to increase the number of antennas to implement MIMO technology. Moreover, multiple sets of MIMO antennas are accommodated in the extremely compact limited space of the mobile terminal, and each set of MIMO antennas needs to be separated by a certain distance to avoid mutual interference of signals, which is extremely challenging for the antenna design of the mobile terminal.

In the prior art, when the long-term evolution (Long Term Evolution, English abbreviation: LTE) antenna is idle, the LTE antenna can be time-division multiplexed into a WiFi antenna, and the MIMO technology is used to receive the WiFi signal. For example, as shown in FIG. 1, a schematic diagram of a two-input two-output (2*2) MIMO antenna system structure. The antenna system includes a WiFi module, a cellular modem, and a single-pole double-throw switch, and a communication connection between the WiFi module and the cellular module. The WiFi module is connected to two antennas, one of which is a dual-band antenna covering two bands of WiFi 2G and WiFi 5G, and the other single-frequency antenna independently covers the WiFi 5G band. The cellular module connects two antennas, including a main antenna and a diversity antenna, and the diversity antenna covers the WiFi 2G frequency band and the LTE high frequency. As shown in FIG. 2, when the WiFi module receives the WiFi 5G signal, the WiFi module uses the two antennas connected by itself to always maintain the MIMO state to receive the WiFi 5G signal. When the WiFi module receives the WiFi 2G signal, when the diversity antenna is in the idle state, that is, when the LTE high-frequency signal is not received, the diversity antenna is multiplexed into the antenna that receives the WiFi 2G signal through the single-pole double-throw switch, so that the WiFi module receives the WiFi. 2G signal is maintained at MIMO status. When the diversity antenna is in a busy state, that is, when receiving the LTE high-frequency signal, the WiFi module maintains the single-input single-output (Single input single output, English abbreviation: SISO) state when receiving the WiFi 2G signal.

Based on the existing WiFi 2G protocol, the WiFi module cannot notify the access point through the signaling mode to synchronize the MIMO state and the SISO state switch. When the WiFi module is switched to the SISO state, the data packet sent by the access point in the MIMO state of the mobile terminal cannot be parsed, which causes the throughput rate to “fall zero” or even the WiFi drop.

Summary of the invention

An embodiment of the present application provides a terminal device and a handover method, which can maintain a WiFi module in a MIMO state to receive a WiFi 2G signal without increasing a large-sized antenna.

The above objectives and other objectives will be achieved by the features of the independent claims. Further implementations are embodied in the dependent claims, the description and the figures.

In a first aspect, a terminal device is provided, where the terminal device may include: a WiFi module, a cellular modem, a first antenna, a second antenna, a third antenna, and a switching circuit; One antenna is a dual-band antenna, which is used for receiving WiFi 5G signals and receiving WiFi 2G signals, and may also be a WiFi 2G main set antenna and a WiFi 5G main set antenna, and the second antenna and the third antenna are both cellular networks. The diversity antennas of the communication respectively support different cellular network communication frequency bands for receiving cellular network signals. In addition, the second antenna and the third antenna may also be Bluetooth antennas, GPS antennas, etc., as long as the antennas can cover the WIFI frequency band. .

Specifically, the WiFi module can be electrically connected to the first antenna, and the WiFi module and the cellular module can be electrically connected to the switching circuit respectively, and the switching circuit can be electrically connected to the second antenna and the third antenna respectively.

When the cellular module and the WiFi module work simultaneously, if the cellular module is electrically connected to the second antenna through the switching circuit, the WiFi module can be electrically connected to the third antenna through the switching circuit.

Alternatively, when the cellular module and the WiFi module work simultaneously, if the cellular module is electrically connected to the third antenna through the switching circuit, the WiFi module can pass the switching circuit and the first The two antennas are electrically connected to the terminal device.

In this way, the cellular module can receive the cellular network signal through the antenna connected to itself, and the WiFi module can use the antenna connected by itself and the two diversity antennas of the LTE as the WiFi 2G, without adding a large-sized antenna. The diversity antenna always maintains the WiFi module in the MIMO state to receive the WiFi 2G signal.

In combination with the first aspect, in a first implementation manner, the switching circuit can include: a first single pole double throw switch, a second single pole double throw switch, and a third single pole double throw switch. The movable end of the first single-pole double-throw switch may be connected to the wireless fidelity module, and the first fixed end of the first single-pole double-throw switch may be connected with the first fixed end of the second single-pole double-throw switch, the first single-knife The second fixed end of the double throw switch may be connected to the first fixed end of the third single pole double throw switch; the movable end of the second single pole double throw switch may be connected to the second antenna, and the second single pole double throw switch is second The fixed end may be connected to the cellular module; the movable end of the third single pole double throw switch may be connected to the third antenna, and the second fixed end of the third single pole double throw switch may be connected to the cellular module.

As such, when the cellular module determines that the second antenna receives the LTE high frequency signal, the mobile terminal of the second single pole double throw switch is connected to the second fixed end of the second single pole double throw switch, and communicates between the second antenna and the cellular module. a link; the movable end of the first single-pole double-throw switch is connected to the second fixed end of the first single-pole double-throw switch, and the first end of the third single-pole double-throw switch and the first single-pole double-throw switch are not moved at the same time The end connection connects the link between the third antenna and the wireless fidelity module. Thereby, the LTE high frequency signal received by the second antenna is transmitted to the cellular module through the link between the second antenna and the cellular module, and the WiFi 2G signal received by the third antenna is transmitted through the third antenna and the wireless The link between the fidelity modules is transmitted to the wireless fidelity module, so that the cellular module receives the LTE high frequency signal through the second antenna, and the wireless fidelity module receives the WiFi 2G signal through the first antenna and the third antenna.

When the cellular module determines that the third antenna receives the LTE intermediate frequency signal, the dynamic end of the third single pole double throw switch is connected to the second fixed end of the third single pole double throw switch, and connects the link between the third antenna and the cellular module; The movable end of the first single-pole double-throw switch is connected with the first fixed end of the first single-pole double-throw switch, and the movable end of the second single-pole double-throw switch and the second single The first fixed end of the knife double throw switch is connected to connect the link between the second antenna and the wireless fidelity module. Thereby, the LTE IF signal received by the third antenna is transmitted to the cellular module through the link between the third antenna and the cellular module, and the WiFi 2G signal received by the second antenna is transmitted through the second antenna and the wireless fidelity The link between the modules is transmitted to the wireless fidelity module, so that the cellular module receives the LTE intermediate frequency signal through the third antenna, and the wireless fidelity module receives the WiFi 2G signal through the first antenna and the second antenna.

When the wireless fidelity module determines that the first antenna needs to receive the WiFi 2G signal, and the cellular module determines that the second antenna does not receive the LTE high frequency signal, and the third antenna does not receive the LTE intermediate frequency signal, the dynamic end of the first single pole double throw switch The first fixed end of the single-pole double-throw switch is connected, and the movable end of the second single-pole double-throw switch is connected with the first fixed end of the second single-pole double-throw switch, and only connects the second antenna and the wireless fidelity module. The link between. Therefore, when the cellular module does not use the second antenna to receive the LTE high frequency signal, and the third antenna does not receive the LTE intermediate frequency signal, the wireless fidelity module multiplexes the second antenna, receives the WiFi 5G signal through the first antenna, and passes the first antenna. And the second antenna receives the WiFi 2G signal, the first antenna is equivalent to the primary RF channel, and the second antenna is equivalent to the secondary RF channel, so that the wireless fidelity module is in the MIMO state to receive the WiFi signal.

When the wireless fidelity module determines that the first antenna does not need to receive the WiFi 2G signal, the cellular module determines that the second antenna receives the LTE high frequency signal, the second end of the second single pole double throw switch and the second one of the second single pole double throw switch a mobile terminal connection, connecting a link between the second antenna and the cellular module, receiving an LTE high frequency signal through a link between the second antenna and the cellular module; and/or, the cellular module determining that the third antenna receives the LTE intermediate frequency signal The movable end of the third single pole double throw switch is connected with the second fixed end of the third single pole double throw switch, connects the link between the third antenna and the cellular module, and passes the link between the third antenna and the cellular module Receive LTE IF signal. Thereby, the cellular module can receive the cellular network signal through the second antenna and/or the third antenna.

In this way, different connections between the wireless fidelity module, the cellular module, and the antenna can be realized by three single-pole double-throw switches, so that the cellular module receives the cellular network signal through the antenna connected to the cellular module, and enables the WiFi module to pass through itself. The connected antenna, and the two diversity antennas of the multiplexed LTE are used as the diversity antennas of the WiFi 2G. The WiFi module is in the MIMO state to receive the WiFi 2G signal.

In a second aspect, a handover method is provided, where the handover method is applied to the terminal device in the first aspect, and the method may include:

When the cellular module and the WiFi module work simultaneously, the terminal device controls the switching circuit, so that when the cellular module is electrically connected to the second antenna through the switching circuit, the terminal device controls the switching circuit, so that the WiFi module passes the switching circuit and is electrically connected to the third antenna. Sexual connection.

The specific implementation manner may be: turning on the wireless fidelity module, when the working frequency band of the wireless fidelity module is 2.4G, detecting whether the second antenna is in a working state of transmitting and receiving a high frequency signal, if the second antenna is not receiving the high frequency signal The working state controls the switching circuit to connect the wireless fidelity module to the second antenna through the switching circuit, and transmits and receives the WiFi 2G signal through the second antenna; if the second antenna is in the working state of receiving the high frequency signal, detecting the third Whether the antenna is in the working state of transmitting and receiving the intermediate frequency signal. If the third antenna is not in the working state of the transmitting and receiving intermediate frequency signal, the switching circuit is controlled, so that the wireless fidelity module is connected to the third antenna through the switching circuit, and the WiFi antenna is transmitted and received through the third antenna. a signal; if the third antenna is in an operating state of transmitting and receiving an intermediate frequency signal, adjusting a working start time of the second antenna and the third antenna, and controlling a switching circuit, so that the wireless fidelity module is connected to the third antenna through the switching circuit The WiFi 2G signal is sent and received through the third antenna.

For example, the method for controlling the switching circuit to enable the wireless fidelity module to connect to the third antenna through the switching circuit can refer to the implementation manner described in the first aspect, and details are not described herein again.

In a third aspect, another terminal device is provided, and the terminal device may include: a wireless fidelity module, a cellular module, a first antenna, a second antenna, and a switching circuit. The first antenna may be a main set antenna for receiving a WiFi 5G signal or a WiFi 2G signal, or may be a dual-band antenna, and may be used for receiving a WiFi 5G signal and for receiving a WiFi 2G signal. The second antenna may be configured to receive cellular network signals, where the cellular network signals include, but are not limited to, long term evolution high frequency signals and long term evolution intermediate frequency signals, and may also include signals such as GSM.

Specifically, the WiFi module can be electrically connected to the first antenna, and the WiFi module and the cellular module can be electrically connected to the switching circuit respectively, and the switching circuit can be electrically connected to the second antenna; when the cellular module and the WiFi module work simultaneously, the cellular Module can be switched The circuit is electrically connected to the second antenna, and the WiFi module can also be electrically connected to the second antenna through the switching circuit.

In an implementation manner of the third aspect, in order to implement the cellular module, the WiFi module can be electrically connected to the second antenna through the switching circuit, respectively, the switching circuit can include: a fourth single pole double throw switch, a fifth single pole double throw switch The switch and the single-pole three-throw switch and the power splitter; the fourth single-pole double-throw switch is connected to the wireless fidelity module, and the first fixed end of the fourth single-pole double-throw switch and the first fixed end of the single-pole three-throw switch Connected, the second fixed end of the fourth single-pole double-throw switch is connected with the power splitter; the movable end of the fifth single-pole double-throw switch is connected with the honeycomb module, and the second fixed end of the fifth single-pole double-throw switch and the single-pole three-throw The third fixed end of the switch is connected, the first fixed end of the fifth single-pole double-throw switch is connected with the power splitter; the movable end of the single-pole three-throw switch is connected with the second antenna, and the second fixed end of the single-pole three-throw switch Connected to the power splitter; the power splitter includes a first filter and a second filter, and the first filter is configured to split the WiFi signal received from the second antenna by the single-pole three-throw switch by using the first filter Four single pole double throw switch, second filter Device, particularly for received from the second antenna through the single-pole three-throw switch is a cellular network signal using a second filter to fifth shunt SPDT switch.

Thus, when the terminal device determines that it is required to simultaneously receive the cellular network signal and the WiFi 2G signal, the dynamic end of the fourth single-pole double-throw switch is connected to the second fixed end of the fourth single-pole double-throw switch, and the fifth single-pole double-throw switch The movable end is connected to the first fixed end of the fifth single-pole double-throw switch, and the movable end of the single-pole three-throw switch is connected with the second fixed end of the single-pole three-throw switch, so that the cellular module can receive the cellular network through the second antenna Signal, at the same time, the wireless fidelity module can receive the WiFi 5G signal through the first antenna, and receive the WiFi 2G signal through the second antenna, the first antenna is equivalent to the main RF channel, and the second antenna is equivalent to the auxiliary RF channel, so that the wireless fidelity module The WiFi signal is received in the MIMO state.

When the wireless fidelity module determines that the first antenna needs to receive the WiFi 2G signal, and the cellular module determines that the second antenna does not receive the cellular network signal, the mobile terminal of the fourth single-pole double-throw switch and the first fixed end of the fourth single-pole double-throw switch Connected, and the movable end of the single-pole three-throw switch is connected with the first fixed end of the single-pole three-throw switch, so that when the cellular module does not use the second antenna to receive the cellular network signal, the wireless fidelity module multiplexes the second antenna through the first The antenna receives the WiFi 5G signal, and receives the WiFi 2G signal through the second antenna. The first antenna is equivalent to the primary RF channel, and the second antenna is equivalent to the secondary RF channel, so that the wireless fidelity module is in the MIMO state to receive the WiFi signal.

When the wireless fidelity module determines that the first antenna does not need to receive the WiFi 2G signal or/and the WiFi 5G signal, the cellular module determines that the second antenna receives the cellular network, the fifth single pole double throw switch and the fifth single pole double throw switch The second fixed end connection, the movable end of the single-pole three-throw switch is connected with the third fixed end of the single-pole three-throw switch, so that when the cellular module uses the second antenna to receive the cellular network signal, the wireless fidelity module is not reused. The two antennas, the cellular module receives the cellular network signal through the second antenna.

In another implementation manner of the third aspect, in order to implement the cellular module, the WiFi module can be electrically connected to the second antenna through the switching circuit, respectively, the switching circuit can include a double-pole double-throw switch DPDT and a coupler, and the coupler The utility model may include a through end and a coupling end; wherein the seventh interface of the double pole double throw switch is connected with the wireless fidelity module, the eighth interface of the double pole double throw switch is connected with the cellular module, and the ninth interface of the double pole double throw switch is The coupler includes a through-end connection, the tenth interface of the double-pole double-throw switch is coupled to the coupling end of the coupler, the coupler is coupled to the second antenna, and the coupler can be used for the cellular network to be received from the second antenna The signal is transmitted through the through end to the double pole double throw switch; the coupler can also be used to transmit the WiFi signal received from the second antenna to the double pole double throw switch through the coupling end. It should be noted that the double-pole double-throw switch is actually a parallel arrangement of two single-pole double-throw switches.

Thus, when the terminal device determines that it is necessary to simultaneously receive the cellular network signal and the WiFi 2G signal, the eighth interface of the double-pole double-throw switch is connected with the ninth interface of the double-pole double-throw switch, and the seventh interface and the double of the double-pole double-throw switch The tenth interface of the double-throw switch is connected, so that when the cellular module receives the cellular network signal through the second antenna, the wireless fidelity module receives the WiFi 5G signal through the first antenna, and receives the WiFi 2G signal through the second antenna, first The antenna is equivalent to the primary RF channel, and the second antenna is equivalent to the secondary RF channel, so that the wireless fidelity module is in the MIMO state to receive the WiFi signal.

Alternatively, the seventh interface of the double-pole double-throw switch is connected to the tenth interface of the double-pole double-throw switch, so that when the cellular module does not use the second antenna to receive the cellular network signal, The line fidelity module multiplexes the second antenna, receives the WiFi 5G signal through the first antenna, and receives the WiFi 2G signal through the second antenna, the first antenna is equivalent to the main RF channel, and the second antenna is equivalent to the auxiliary RF channel, so that the wireless fidelity The module is in the MIMO state to receive the WiFi signal.

Alternatively, the eighth interface of the double-pole double-throw switch is connected to the ninth interface of the double-pole double-throw switch, so that when the cellular module receives the cellular network signal using the second antenna, the wireless fidelity module does not multiplex the second antenna, the cellular The module receives cellular network signals only through the second antenna.

In this way, while the cellular module receives the cellular network signal through the second antenna, the wireless fidelity module transmits and receives the WiFi signal through the first antenna and the second antenna, respectively, so that the wireless fidelity module multiplexes and transmits the WiFi to the antenna connected to the cellular module. The signal always maintains the WiFi module in MIMO state.

It should be noted that, as a reverse process of the receiving process, the specific implementation manner of receiving the WiFi 2G signal and the cellular network signal in the present invention is also applicable to the sending of the WiFi 2G signal and the cellular network signal, and details are not described herein again.

The fourth aspect, further provides a handover method, where the method is performed by the terminal device in the third aspect, and may include: when the cellular module and the WiFi module work simultaneously, the terminal device controls the switching circuit to enable the cellular module to pass the switching circuit. Electrically connecting with the second antenna; and the WiFi module is electrically connected to the second antenna through the switching circuit, transmitting the cellular network signal to the cellular module through the link between the second antenna and the cellular module, and passing the WiFi signal through the second The link between the antenna and the wireless fidelity module is transmitted to the wireless fidelity module.

Specifically, the terminal device can control the switching circuit by using the manner described in the third aspect, so that the cellular module is electrically connected to the second antenna through the switching circuit, and the WiFi module is electrically connected to the second antenna through the switching circuit, and is no longer Detailed description.

It can be understood that the names of the terminal devices in the present invention are not limited to the devices themselves, and in actual implementation, these devices may appear under other names. As long as the functions of the respective devices are similar to the present invention, they are within the scope of the claims and the equivalents thereof.

These and other aspects of the invention will be more apparent from the following description of the embodiments.

DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings to be used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present application, and other drawings can be obtained according to the drawings without any creative work for those skilled in the art.

1 is a schematic structural diagram of a terminal device according to the prior art;

2 is a schematic diagram of signal reception according to the prior art;

FIG. 3 is a schematic structural diagram of a terminal according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

FIG. 9 is a flowchart of a handover method according to an embodiment of the present application;

FIG. 10 is a schematic diagram of signal reception according to an embodiment of the present application;

FIG. 11 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

FIG. 12 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

FIG. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

FIG. 14 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

FIG. 15 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

FIG. 16 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

FIG. 17 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

FIG. 18 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of this application. Embodiments, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

In the description of the present invention, it is to be understood that the system or element indicated by the terms "first", "second", "another" or the like is a system or component having a function described based on the embodiments, only for the purpose of The invention is not limited by the description, and is not intended to be a limitation of the invention.

Before the detailed description of the present solution, in order to facilitate the understanding of the technical solutions of the present invention, the technical terms involved in the present invention are explained in detail, and it should be understood that the following technical terms are merely descriptions for the convenience of the description of the present invention, and It is not intended or implied that the system or component referred to must have this designation and therefore is not to be construed as limiting the invention:

Main set antenna: may include a main set antenna of a cellular communication band or a WiFi main set antenna. If it is a main set antenna of a cellular communication band, it refers to a device that completes reception or transmission of a cellular communication signal; if it refers to a WiFi main set antenna, Refers to the device that completes the reception or transmission of the WiFi signal.

Diversity antenna: refers to the device used to complete the signal reception of the diversity path.

Cellular network communication: It adopts the cellular wireless networking mode, and connects between the terminal and the network device through the wireless channel, so that the users can communicate with each other during the activity.

Cellular network communication band: refers to the frequency band working in cellular network communication, such as LTE (Bands1, 2, 3, 4, 5, 8, 13, 17, 19, 20, 25). This patent relates to LTE communication. High frequency band and mid-band of LTE. The LTE High Band (LTE B7/38/41) frequency band is 2.49-2.6 GHz, and the LTE Middle Band refers to 1710-2170 MHz.

Electrical connection: It means that the circuit components can be directly connected or electrically connected, or can be indirectly connected or electrically connected through other circuit components. For example, if the cellular module is connected to the second antenna through the switching circuit, the direct connection between the cellular module and the second antenna can be referred to as an electrical connection.

The embodiment of the invention provides a schematic diagram of a structure of a terminal, which can be a mobile phone, a tablet computer, a notebook computer, or a super mobile personal computer (English full name: Ultra-mobile Personal Computer (English abbreviation: UMPC), netbook, personal digital assistant (English full name: Personal Digital Assistant, English abbreviation: PDA) and other terminal equipment.

In the embodiment of the present invention, the terminal is used as an example for the mobile phone. As shown in FIG. 3, the mobile phone includes: a processor, a memory, an input unit, a display unit, a gravity sensor, an audio circuit, a power source, and a radio frequency (English name: radio frequency, English) Abbreviation: RF) circuits, wireless fidelity modules, and cellular modules. It will be understood by those skilled in the art that the structure of the handset shown in FIG. 3 does not constitute a limitation to the handset, and may include more or less components than those illustrated, or some components may be combined, or different component arrangements.

The following briefly introduces the components of the mobile phone with reference to FIG. 3:

The processor is the control center of the mobile phone, and connects various parts of the entire mobile phone by using various interfaces and lines, and executes each mobile phone by running or executing software programs and/or modules stored in the memory, and calling data stored in the memory. The function and processing of data to monitor the phone as a whole.

The memory can be used to store software programs and modules, and the processor executes various functional applications and data processing of the mobile phone by running software programs and modules stored in the memory.

The input unit can be used to receive input numeric or character information and to generate key signal inputs related to user settings and function controls of the handset. In particular, the input unit can include a touch screen as well as other input devices. A touch screen, also known as a touch panel, can collect touch operations on or near the user (such as the user using a finger, a stylus, or the like on any touch screen or near the touch screen), and according to the preset The programmed program drives the corresponding connection device.

The display unit can be used to display information input by the user or information provided to the user as well as various menus of the mobile phone. The display unit may include a display panel.

Audio circuitry, speakers, and microphones provide an audio interface between the user and the phone. The audio circuit can transmit the converted electrical signal of the received audio data to the speaker and convert it into a sound signal output by the speaker; on the other hand, the microphone converts the collected sound signal into an electrical signal, which is received by the audio circuit and converted into audio. Data, then the number of audio It is output to a radio frequency circuit for transmission to, for example, another mobile phone, or audio data is output to a memory for further processing.

The radio frequency circuit can be configured to transmit the received cellular network signal to the cellular module through the antenna, and transmit the received WiFi signal to the wireless fidelity module for processing. Generally, the RF circuit includes, but is not limited to, an antenna, a RF front-end module (English name: Front End Module, FEM), a filter, at least one amplifier, a coupler, and a low-noise amplifier (English name: low noise amplifier, English) Abbreviation: LNA), and duplexer.

The basic principle of the present invention is to provide a terminal device that multiplexes two diversity antennas of LTE as diversity antennas of WiFi 2G, so that WiFi 2G is always maintained in the MIMO state.

Specifically, the terminal device includes a first antenna, a second antenna, and a third antenna.

The first antenna is a main set antenna of WiFi 2G.

Optionally, the first antenna can support both

WiFi

2G and 5G, that is, the first antenna is both a WiFi 2G main set antenna and a WiFi 5G main set antenna.

The second antenna and the third antenna are diversity antennas for cellular network communication, respectively supporting different cellular network communication bands. For example, the second antenna covers the high frequency band of LTE, and the third antenna covers the intermediate frequency band of LTE, or vice versa.

When the WiFi module of the terminal works in the 2G frequency band, the terminal device controls the diversity antenna connection of the WiFi module to communicate with the cellular network in the idle state according to the control of the processor, that is, the diversity antenna of the cellular network communication in the idle state is used as the WiFi. The 2G diversity antenna enables the WiFi 2G to operate in the MIMO state.

In this way, the cellular module can receive the cellular network signal through the antenna connected to itself, and the WiFi module can pass the antenna connected to itself and the two diversity multiplexing LTE without adding a large-sized antenna. The antenna as the diversity antenna of the WiFi 2G always maintains the WiFi module in the MIMO state to receive the WiFi 2G signal.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The embodiment of the present invention provides a terminal device. As shown in FIG. 4, the terminal device may include: wireless fidelity (English name: wireless fidelity, English abbreviation: WiFi) The module 11, the cellular module 12, the first antenna 13, the second antenna 14, the third antenna 15, and the switching circuit 16.

The first antenna 13 may be a main set antenna for transmitting a WiFi 5G signal or a WiFi 2G signal, or may be a dual-band antenna, and may be used for receiving a WiFi 5G signal and for receiving a WiFi 2G signal.

The second antenna 14 and the third antenna 15 may be diversity antennas for cellular network communication, respectively supporting different cellular network communication bands for receiving cellular network signals; and may also be Bluetooth antennas, GPS antennas, etc., as long as they can cover the WIFI frequency band. The antennas are all available. Specifically, the second antenna 14 can be used to receive an LTE high frequency signal, and the third antenna 15 can be used to receive an LTE intermediate frequency signal, or vice versa. The cellular network signal in this embodiment includes, but is not limited to, a Long Term Evolution High Band (LTE) signal and a Long Term Evolution Middle Band (English term: Long Term Evolution Middle Band). English abbreviation: LTE MB) signal, can also be the global mobile communication system (English full name: Global System for Mobile Communication, English abbreviation: GSM) signal.

Specifically, as shown in FIG. 4 , the WiFi module 11 can be electrically connected to the first antenna 13 , and the WiFi module 11 and the cellular module 12 can be electrically connected to the switching circuit respectively, and the switching circuit 16 can be respectively connected to the second antenna 14 and 15 . The third antenna is electrically connected.

When the cellular module 12 and the WiFi module 11 are working at the same time, if the cellular module 12 is electrically connected to the second antenna 14 through the switching circuit, the WiFi module 11 can be electrically connected to the third antenna 15 through the switching circuit 16 .

Alternatively, when the cellular module 12 and the WiFi module 11 are working at the same time, if the cellular module 12 is electrically connected to the third antenna 15 through the switching circuit, the WiFi module 11 can be electrically connected to the second antenna 14 through the switching circuit 16.

In order to realize two connection states when the cellular module 12 and the WiFi module 11 work simultaneously, as shown in FIG. 4, the switching circuit 16 may include: a first single pole double throw switch 101, a second single pole double throw switch 102, and a third single pole double Throw switch 103. The movable end of the first single-pole double-throw switch 101 can be connected to the wireless fidelity module 11, and the first fixed end of the first single-pole double-throw switch 101 can be connected to the first fixed end of the second single-pole double-throw switch 102. The second fixed end of the first single-pole double-throw switch 101 can be connected to the first fixed end of the third single-pole double-throw switch 103; the movable end of the second single-pole double-throw switch 102 can be connected to the second antenna 14. The second fixed end of the second single-pole double-throw switch 102 can be connected to the honeycomb module 12; the movable end of the third single-pole double-throw switch 103 can be connected to the third antenna 15, and the second single-pole double-throw switch 103 is second. The terminal can be connected to the cellular module 12.

It can be understood that the single-pole double-throw switch according to the embodiment of the present invention generally consists of a moving end and a non-moving end, and the moving end is a so-called "knife", and the moving end is connected to the incoming line of the power supply, that is, one end of the incoming call, generally It is also the end connected to the handle of the switch; the other ends are the two ends of the power output, also known as the fixed end, and the fixed end is connected to the powered device. One switch can be dialed to both sides for dual control.

As such, as shown in FIG. 5, in an implementation manner, when the cellular module 12 determines that the second antenna 14 receives the LTE high frequency signal, the mobile terminal of the second single pole double throw switch 102 and the second single pole double throw switch 102 The second fixed end connection connects the link between the second antenna 14 and the cellular module 12; the moving end of the first single pole double throw switch 101 is connected to the second fixed end of the first single pole double throw switch 101, The movable end of the third single-pole double-throw switch 103 is connected to the first fixed end of the third single-pole double-throw switch, and connects the link between the third antenna 15 and the wireless fidelity module 11. Thereby, the LTE high frequency signal received by the second antenna 14 is transmitted to the cellular module 12 through the link between the second antenna 14 and the cellular module 12, and the WiFi 2G signal received by the third antenna 15 is passed. The link between the third antenna 15 and the wireless fidelity module 11 is transmitted to the wireless fidelity module 11 so that the cellular module 12 receives the LTE high frequency signal through the second antenna 14, and the wireless fidelity module 11 passes through the first antenna 13 And the third antenna 15 receives the WiFi 2G signal.

As shown in FIG. 6, in another implementation manner, when the cellular module 12 determines that the third antenna 15 receives the LTE intermediate frequency signal, the mobile terminal of the third single pole double throw switch 103 and the second end of the third single pole double throw switch 103 The fixed end connection connects the link between the third antenna 15 and the cellular module 12; the movable end of the first single-pole double-throw switch 101 is connected to the first fixed end of the first single-pole double-throw switch 101, and at the same time, the second The movable end of the single-pole double-throw switch 102 is connected to the first fixed end of the second single-pole double-throw switch 102, and communicates the link between the second antenna 14 and the wireless fidelity module 11. Thus, through the third antenna 15 and the cellular module 12 The inter-link transmits the LTE intermediate frequency signal received by the third antenna 15 to the cellular module 12, and passes the WiFi 2G signal received by the second antenna 14 through the link between the second antenna 14 and the wireless fidelity module 11. The wireless fidelity module 11 transmits the WiFi 2G signal through the first antenna 13 and the second antenna 14 while the cellular module 12 receives the LTE intermediate frequency signal through the third antenna 15 .

It should be noted that, in another implementation manner, as shown in FIG. 7, when the wireless fidelity module 11 determines that the first antenna 13 needs to receive the WiFi 2G signal, the cellular module 12 determines that the second antenna 14 does not receive the LTE high frequency. When the third antenna 15 does not receive the LTE intermediate frequency signal, the dynamic end of the first single pole double throw switch 101 is connected to the first fixed end of the first single pole double throw switch 101, and at the same time, the second single pole double throw switch 102 The movable end is connected to the first fixed end of the second single pole double throw switch 102, and only connects the link between the second antenna 14 and the wireless fidelity module 11. Thus, when the cellular module 12 does not receive the LTE high frequency signal using the second antenna 14, and the third antenna 15 does not receive the LTE intermediate frequency signal, the wireless fidelity module 11 multiplexes the second antenna 14 and receives the WiFi 5G through the first antenna 13. The signal receives the WiFi 2G signal through the first antenna 13 and the second antenna 14. The first antenna 14 is equivalent to the primary RF channel, and the second antenna 15 is equivalent to the secondary RF channel, so that the wireless fidelity module 11 is in the MIMO state to receive the WiFi signal.

It should be noted that, in another implementation manner, as shown in FIG. 8, when the wireless fidelity module determines that the first antenna 13 does not need to receive the WiFi 2G signal, the cellular module 12 determines that the second antenna 14 receives the LTE high frequency signal. The second end of the second single pole double throw switch 102 is connected to the second fixed end of the second single pole double throw switch 102, and connects the link between the second antenna 14 and the cellular module 12 through the second antenna 14 The link between the cellular modules 12 receives the LTE high frequency signal; and/or, when the cellular module 12 determines that the third antenna 15 receives the LTE intermediate frequency signal, the mobile terminal of the third single pole double throw switch 103 and the third single pole double throw switch 103 The second fixed end connection connects the link between the third antenna 15 and the cellular module 12, and receives the LTE intermediate frequency signal through the link between the third antenna 15 and the cellular module 12. Thus, the cellular module 12 can receive cellular network signals through the second antenna 14 and/or the third antenna 15.

According to the application scenario described in FIG. 5 to FIG. 8 , the terminal device shown in FIG. 4 can be adopted. By using the method steps shown in FIG. 9, the cellular module receives the cellular network signal through the second antenna or the third antenna by controlling the connection state of the switching circuit 16, and the wireless fidelity module transmits and receives the WiFi signal through the second antenna or the third antenna. . Specifically, as shown in FIG. 9, the method steps may include:

Step 201: Turn on the wireless fidelity module. When the working frequency band of the wireless fidelity module is 2.4G, the process proceeds to step 202.

Step 202: Detect whether the second antenna is in an operating state of transmitting and receiving a high frequency signal.

Optionally, whether the second antenna is in an operating state of transmitting and receiving a high frequency signal may be detected by a cellular module in the terminal device.

If the second antenna is not in the working state of receiving the high frequency signal, step 203 is performed. If the second antenna is in the working state of receiving the high frequency signal, it indicates that the second antenna can be in communication with the cellular module, and the switching circuit can be controlled. The cellular module transmits and receives a high frequency signal through the second antenna, and the second antenna is not connectable to the wireless fidelity module. At this time, in order to enable the wireless fidelity module to receive the WiFi 2G signal in the MIMO state, step 204 is continued.

Step 203: Control the switching circuit, so that the wireless fidelity module is connected to the second antenna through the switching circuit, and the WiFi 2G signal is sent and received through the second antenna.

Optionally, the terminal device can implement the connection between the wireless fidelity module and the second antenna by controlling the connection between the endpoints of the single-pole and double-throw switches in the switching circuit. Specifically, the connection manner can be implemented in the application scenario described above. The method will not be described in detail here.

Step 204: Detect whether the third antenna is in an operating state of transmitting and receiving an intermediate frequency signal.

If the third antenna is not in the working state of the transmitting and receiving intermediate frequency signal, step 205 is performed. If the third antenna is in the working state of the transmitting and receiving intermediate frequency signal, it indicates that the third antenna is in communication with the cellular module, and the switching circuit can be controlled to enable the cellular module. The IF signal is transmitted and received through the third antenna, and the third antenna is not connectable to the wireless fidelity module. At this time, in order to enable the wireless fidelity module to receive the WiFi 2G signal in the MIMO state, step 206 is continued.

Step 205: Control a switching circuit, so that the wireless fidelity module passes the switching circuit and The third antenna is connected, and the WiFi 2G signal is sent and received through the third antenna.

Optionally, the terminal device can implement the connection between the wireless fidelity module and the third antenna by controlling the connection between the endpoints of the single-pole and double-throw switches in the switching circuit. Specifically, the connection manner can be implemented in the application scenario described above. The method will not be described in detail here.

Step 206: Adjust a working start time of the second antenna and the third antenna, and control the switching circuit, so that the wireless fidelity module is connected to the third antenna through the switching circuit, and the WiFi 2G signal is sent and received through the third antenna.

When the second antenna and the third antenna work simultaneously, the collision between the second antenna and the third antenna is avoided. For example, when the processor or the cellular module in the terminal device searches for the LTE high-frequency signal every X seconds, and searches for the LTE intermediate frequency signal every X seconds, the LTE high-frequency signal and the LTE intermediate frequency signal may be simultaneously searched at the same time. The processor or the cellular module adjusts the period of searching for the LTE high frequency signal and the LTE intermediate frequency signal, for example, searching for the LTE high frequency signal in the first X second period, searching for the LTE intermediate frequency signal in the next X second period, and so on, Thus, the working start time of the second antenna and the third antenna is staggered.

FIG. 10 is a schematic diagram of signal reception. As shown in FIG. 10, the WiFi module uses both antennas connected by itself to maintain the MIMO state to receive the WiFi 5G signal. When the WiFi module receives the WiFi 2G signal, whether the cellular module receives the cellular network signal, the antenna that receives the cellular network signal is multiplexed by using the control switching circuit, and at least two antennas are used, so that the WiFi module maintains the MIMO state when receiving the WiFi 2G signal. .

The wireless fidelity module of the present invention can receive a WiFi 5G signal and a WiFi 2G signal. Due to the higher 5G frequency band, the antenna size is inversely proportional to the frequency band. The antenna receiving the WiFi 5G signal is small in size and easy to increase. Therefore, by adding a 5G WiFi diversity antenna to the antenna system, and separately designing the dual-frequency antenna. , receiving WiFi 5G signals.

Since the WiFi band is 2.402-2.4835 GHz, the LTE HB (LTE B7/38/41) band is 2.49-2.6 GHz, and the LTE MB band is 1710-2170 MHz, and there is no overlapping band in the three. Therefore, WiFi can be multiplexed with the same frequency in both bands of LTE. line. In this way, the cellular module can receive and transmit the cellular network signal through the antenna connected to itself, and the WiFi module can connect the antenna connected to itself, and the multiplexing and cellular module, without adding a large-sized antenna. The connected antenna receives or transmits a WiFi signal, and always maintains the WiFi module in a MIMO state.

In another alternative, the embodiment of the present invention further provides a terminal device. As shown in FIG. 11, the terminal device may include: a wireless fidelity module 11, a cellular module 12, a first antenna 13, and a second antenna. 14. Switching circuit 16. The first antenna 13 may be a main set antenna for receiving a WiFi 5G signal or a WiFi 2G signal, or may be a dual-band antenna, and may be used for receiving a WiFi 5G signal and for receiving a WiFi 2G signal. The second antenna 14 can be configured to receive cellular network signals, wherein the cellular network signals include, but are not limited to, long term evolution high frequency signals and long term evolution intermediate frequency signals, and may also include signals such as GSM.

As shown in FIG. 11, the WiFi module 11 can be electrically connected to the first antenna 13;

The WiFi module 11 and the cellular module 12 can be electrically connected to the switching circuit 16 respectively;

The switching circuit 16 can be electrically connected to the second antenna 14;

When the cellular module 12 and the WiFi module 11 are working at the same time, the cellular module 12 can be electrically connected to the second antenna 14 through the switching circuit 16, and the WiFi module 11 can also be electrically connected to the second antenna 14 through the switching circuit 16.

In an implementation manner of this embodiment, as shown in FIG. 11, the switching circuit 16 may include the cellular module 12 and the WiFi module 11 being electrically connected to the second antenna 14 through the switching circuit 16, respectively. a fourth single-pole double-throw switch 301, a fifth single-pole double-throw switch 302, and a single-pole three-throw switch 303 and a power splitter 304; the movable end 301 of the fourth single-pole double-throw switch is connected to the wireless fidelity module 11, and the fourth single-pole double The first fixed end of the throw switch 301 is connected to the first fixed end of the single-pole three-throw switch 303, the second fixed end of the fourth single-pole double-throw switch 301 is connected to the power splitter 304; and the fifth single-pole double-throw switch 302 The movable end is connected to the honeycomb module 12, the second fixed end of the fifth single-pole double-throw switch 302 is connected to the third fixed end of the single-pole three-throw switch 303, and the first fixed end of the fifth single-pole double-throw switch 302 is The power splitter 304 is connected; the dynamic end of the single-pole three-throw switch 303 is connected to the second antenna, and the second fixed end of the single-pole three-throw switch 303 is connected to the power splitter; the power splitter 304 The first filter 3041 and the second filter 3042 are configured to divide the WiFi signal received from the second antenna 14 by the single-pole three-throw switch 303 by the first filter 3041 to the fourth single-pole double The throw switch 301, the second filter 3042, is specifically configured to shunt the cellular network signal received from the second antenna 14 through the single-pole three-throw switch 303 to the fifth single-pole double-throw switch 302 by using the second filter 3042.

Understandably, usually the single-pole double-throw switch consists of a moving end and a non-moving end. The moving end is a so-called "knife". The moving end should be connected to the incoming line of the power supply, that is, the end of the incoming call, which is generally connected to the handle of the switch. The other end is the two ends of the power output, which is the so-called fixed end, and the fixed end is connected to the powered device. One switch can be dialed to both sides for dual control.

Thus, in an achievable manner, as shown in FIG. 12, when the terminal device determines that it is necessary to simultaneously receive the cellular network signal and the WiFi 2G signal, the dynamic end of the fourth single-pole double-throw switch 301 and the fourth single-pole double-throw switch 301 The second fixed end is connected, and the movable end of the fifth single-pole double-throw switch 302 is connected to the first fixed end of the fifth single-pole double-throw switch 302, and the movable end of the single-pole three-throw switch 303 and the single-pole three-throw switch 303 The second fixed end connection, so that the cellular module 12 can receive the cellular network signal through the second antenna 14, while the wireless fidelity module 11 can receive the WiFi 5G signal through the first antenna 13, and receive the WiFi 2G through the second antenna 14. The signal, the first antenna 13 is equivalent to the primary RF channel, and the second antenna 14 is equivalent to the secondary RF channel, so that the wireless fidelity module 11 is in the MIMO state to receive the WiFi signal.

In another implementation manner, as shown in FIG. 13, when the wireless fidelity module 11 determines that the first antenna 13 needs to receive the WiFi 2G signal, and the cellular module 12 determines that the second antenna 14 does not receive the cellular network signal, the fourth single knife The movable end of the double throw switch 301 is connected to the first fixed end of the fourth single pole double throw switch 301, and the movable end of the single pole triple throw switch 303 is connected with the first fixed end of the single pole triple throw switch 303, thereby realizing the honeycomb When the module 12 does not use the second antenna 14 to receive the cellular network signal, the wireless fidelity module 11 multiplexes the second antenna 14, receives the WiFi 5G signal through the first antenna 13, and receives the WiFi 2G signal through the second antenna 14, the first antenna 14 Corresponding to the primary RF channel, the second antenna 14 is equivalent to the secondary RF channel, so that the wireless fidelity module 11 is in the MIMO state to receive the WiFi signal. number.

In yet another implementation manner, as shown in FIG. 14, when the wireless fidelity module 11 determines that the first antenna 13 does not need to receive a WiFi 2G signal or/and a WiFi 5G signal, the cellular module 12 determines that the second antenna 14 receives the cellular network. The movable end of the fifth single-pole double-throw switch 302 is connected to the second fixed end of the fifth single-pole double-throw switch 302, and the movable end of the single-pole three-throw switch 303 is connected to the third fixed end of the single-pole three-throw switch 303. Thus, when the cellular module 12 receives the cellular network signal using the second antenna 14, the wireless fidelity module 11 does not multiplex the second antenna 14, and the cellular module 12 receives the cellular network signal through the second antenna 14.

Further, in order to realize that the cellular module 12 and the WiFi module 11 can be electrically connected to the second antenna 14 through the switching circuit 16, respectively, in another implementation manner of this embodiment, as shown in FIG. 16 may include a double pole double throw switch DPDT 305 and a coupler 306, the coupler 306 may include a through end and a coupled end;

The seventh interface of the double-pole double-throw switch 305 is connected to the wireless fidelity module 11, the eighth interface of the double-pole double-throw switch 305 is connected to the cellular module 12, and the ninth interface of the double-pole double-throw switch 305 and the coupler 306 are Including the through-end connection, the tenth interface of the double-pole double-throw switch 305 is coupled to the coupling end of the coupler 306, the coupler 306 is coupled to the second antenna, and the coupler 306 can be used to receive from the second antenna 14. The cellular network signal is transmitted through the through end to the double pole double throw switch 305; the coupler 306 can also be used to transmit the WiFi signal received from the second antenna 14 to the double pole double throw switch 305 through the coupling end. It should be noted that the double-pole double-throw switch is actually a parallel arrangement of two single-pole double-throw switches.

Thus, in an achievable manner of this embodiment, as shown in FIG. 16, when the terminal device determines that it is required to simultaneously receive the cellular network signal and the WiFi 2G signal, the eighth interface of the double-pole double-throw switch 305 and the double-pole double The ninth interface of the throw switch 305 is connected, and the seventh interface of the double pole double throw switch 305 is connected to the tenth interface of the double pole double throw switch 305, so that when the cellular module 12 receives the cellular network signal through the second antenna 14, The wireless fidelity module 11 receives the WiFi 5G signal through the first antenna 13 and the WiFi 2G signal through the second antenna 14, the first antenna 13 is equivalent to the main RF channel, and the second antenna 14 is equivalent to the secondary RF channel, so that the wireless fidelity module 11 is in the MIMO state to receive the WiFi signal.

In another implementation manner of this embodiment, as shown in FIG. 17, the seventh interface of the double pole double throw switch 305 is connected to the tenth interface of the double pole double throw switch 305, thereby achieving unused in the cellular module 12. When the second antenna 14 receives the cellular network signal, the wireless fidelity module 11 multiplexes the second antenna 14, receives the WiFi 5G signal through the first antenna 13, and receives the WiFi 2G signal through the second antenna 14, the first antenna 14 is equivalent to the primary RF The channel, the second antenna 14 is equivalent to the secondary RF channel, so that the wireless fidelity module 11 is in the MIMO state to receive the WiFi signal.

In still another implementation manner of the embodiment of the present invention, as shown in FIG. 18, the eighth interface of the double-pole double-throw switch 305 is connected to the ninth interface of the double-pole double-throw switch 305, thereby realizing use in the cellular module 12. When the second antenna 14 receives the cellular network signal, the wireless fidelity module 11 does not multiplex the second antenna 14, and the cellular module 12 receives the cellular network signal only through the second antenna 14.

According to the application scenarios described in FIG. 12 to FIG. 14 and FIG. 16 to FIG. 18, the terminal device shown in FIG. 4 can implement the following steps to implement the cellular module to receive the cellular through the second antenna when the cellular module and the WiFi module work simultaneously. The network signal, the wireless fidelity module transmits and receives the WiFi signal through the first antenna and the second antenna:

The terminal device controls the switching circuit, so that the cellular module is electrically connected to the second antenna through the switching circuit; and the WiFi module is electrically connected to the second antenna through the switching circuit, and the cellular network signal is passed between the second antenna and the cellular module. The link is transmitted to the cellular module, and the WiFi signal is transmitted to the wireless fidelity module through the link between the second antenna and the wireless fidelity module.

Optionally, the switching circuit may include a fourth single-pole double-throw switch, a fifth single-pole double-throw switch, a single-pole three-throw switch, and a power splitter as shown in FIG. 11; specifically, the terminal device control switching circuit may include:

The movable end of the fourth single-pole double-throw switch is connected with the second fixed end of the fourth single-pole double-throw switch, and the movable end of the fifth single-pole double-throw switch is connected with the first fixed end of the fifth single-pole double-throw switch, and the single-pole The movable end of the triple throw switch is connected to the second fixed end of the single pole triple throw switch.

Optionally, in another implementation manner, the switching circuit may further include a circuit including a double-pole double-throw switch DPDT and a coupler as shown in FIG. 15; specifically, the terminal device control switching circuit may include:

The seventh interface of the double-pole double-throw switch is connected with the tenth interface of the double-pole double-throw switch, and the eighth interface of the double-pole double-throw switch is connected with the ninth interface of the double-pole double-throw switch.

The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application. It should be covered by the scope of protection of this application. Therefore, the scope of protection of the present application should be determined by the scope of the claims.

Claims

A terminal device, comprising: a wireless fidelity (WiFi) module, a cellular module, a switching circuit, a first antenna, a second antenna, and a third antenna,

The first antenna is a main set antenna for transmitting a WiFi signal, and the second antenna and the third antenna are both diversity antennas of a cellular network communication, respectively supporting different cellular network communication bands.

The WiFi module and the first antenna are electrically connected;

The WiFi module and the cellular module are respectively electrically connected to the switching circuit;

The switching circuit is electrically connected to the second antenna and the third antenna, respectively;

When the cellular module and the WiFi module work simultaneously, if the cellular module is electrically connected to the second antenna through the switching circuit, the WiFi module passes through the switching circuit, and the third antenna Electrical connection.
The terminal device according to claim 1, wherein when the cellular module and the WiFi module work simultaneously, if the cellular module is electrically connected to the third antenna through the switching circuit, The WiFi module is electrically connected to the second antenna through the switching circuit.
The terminal device according to claim 1 or 2, wherein the switching circuit comprises a first single pole double throw switch, a second single pole double throw switch, and a third single pole double throw switch,

The movable end of the first single-pole double-throw switch is connected to the wireless fidelity module, and the first fixed end of the first single-pole double-throw switch and the first fixed single-pole double-throw switch are not moved. End connection, the second fixed end of the first single pole double throw switch is connected to the first fixed end of the third single pole double throw switch;

a movable end of the second single-pole double-throw switch is connected to the second antenna, and a second fixed end of the second single-pole double-throw switch is connected to the cellular module;

The movable end of the third single pole double throw switch is connected to the third antenna, and the second fixed end of the third single pole double throw switch is connected to the honeycomb module.
The terminal device according to any one of claims 1 to 3, characterized in that The first antenna is a main set antenna for transmitting a WiFi 2G signal and a main set antenna for transmitting a WiFi 5G signal.
A switching method, which is applied to a terminal device, where the terminal device includes a wireless fidelity WiFi module, a cellular module, a switching circuit, a first antenna, a second antenna, and a third antenna, wherein the first The antenna is a main set antenna for transmitting a WiFi signal, and the second antenna and the third antenna are both diversity antennas of a cellular network communication, respectively supporting different cellular network communication bands, and the WiFi module and the first antenna are electrically The splicing circuit is electrically connected to the switching circuit, and the switching circuit is electrically connected to the second antenna or the third antenna, respectively. The method includes:

When the cellular module and the WiFi module work simultaneously, the terminal device controls the switching circuit, and when the cellular module is electrically connected to the second antenna through the switching circuit, the terminal device The switching circuit is controlled to electrically connect the WiFi module to the third antenna through the switching circuit.
The switching method according to claim 5, wherein when the cellular module and the WiFi module work simultaneously, the terminal device controls the switching circuit to cause the cellular module to pass the switching circuit, and When the third antenna is electrically connected, the terminal device controls the switching circuit, so that the WiFi module is electrically connected to the second antenna through the switching circuit.
The switching method according to claim 5, wherein said switching circuit comprises a first single pole double throw switch, a second single pole double throw switch and a third single pole double throw switch, wherein said first single pole double throw switch The movable end is connected to the wireless fidelity module, and the first fixed end of the first single pole double throw switch is connected to the second fixed end of the second single pole double throw switch, the first single pole double throw a second fixed end of the switch is connected to the first fixed end of the third single pole double throw switch; a moving end of the second single pole double throw switch is connected to the second antenna, and the second single pole double throw switch is a first fixed end is connected to the cellular module; a movable end of the third single pole double throw switch is connected to the third antenna, and a second fixed end of the third single pole double throw switch is connected to the cellular module,

The controlling, by the terminal device, the switching circuit includes:

Controlling a movable end of the first single-pole double-throw switch to be connected to a second fixed end of the first single-pole double-throw switch, a dynamic end of the second single-pole double-throw switch and a second single-pole double-throw switch The first fixed end is connected, and the movable end of the third single pole double throw switch is connected to the first fixed end of the third single pole double throw switch.
The switching method according to claim 6, wherein said switching circuit comprises a first single pole double throw switch, a second single pole double throw switch and a third single pole double throw switch, wherein said first single pole double throw switch The movable end is connected to the wireless fidelity module, and the first fixed end of the first single pole double throw switch is connected to the second fixed end of the second single pole double throw switch, the first single pole double throw a second fixed end of the switch is connected to the first fixed end of the third single pole double throw switch; a moving end of the second single pole double throw switch is connected to the second antenna, and the second single pole double throw switch is a first fixed end is connected to the cellular module; a movable end of the third single pole double throw switch is connected to the third antenna, and a second fixed end of the third single pole double throw switch is connected to the cellular module,

The controlling, by the terminal device, the switching circuit includes:

Controlling a moving end of the first single pole double throw switch to be connected to a first fixed end of the first single pole double throw switch, a moving end of the second single pole double throw switch and a second single pole double throw switch The second fixed end is connected, and the movable end of the third single pole double throw switch is connected to the second fixed end of the third single pole double throw switch.
A terminal device, comprising: a wireless fidelity WiFi module, a cellular module, a switching circuit, a first antenna, and a second antenna,

The first antenna is a primary antenna for transmitting a WiFi signal, and the second antenna is a diversity antenna for cellular network communication, and supports different cellular network communication bands.

The WiFi module and the first antenna are electrically connected;

The WiFi module and the cellular module are respectively electrically connected to the switching circuit;

The switching circuit is electrically connected to the second antenna;

When the cellular module and the WiFi module work simultaneously, the cellular module is electrically connected to the second antenna through the switching circuit; and the WiFi module passes the switching circuit, and the second The antenna is electrically connected.
The terminal device according to claim 9, wherein said switching power The road includes a fourth single pole double throw switch, a fifth single pole double throw switch, a single pole triple throw switch and a power splitter.

The movable end of the fourth single-pole double-throw switch is connected to the wireless fidelity module, and the first fixed end of the fourth single-pole double-throw switch is connected to the first fixed end of the single-pole three-throw switch The second fixed end of the fourth single pole double throw switch is connected to the power splitter,

a movable end of the fifth single-pole double-throw switch is connected to the honeycomb module, and a second fixed end of the fifth single-pole double-throw switch is connected to a third fixed end of the single-pole three-throw switch, a first fixed end of the five single pole double throw switch is connected to the power splitter,

a moving end of the single-pole three-throw switch is connected to the second antenna, and a second fixed end of the single-pole three-throw switch is connected to the power splitter.

The power splitter includes a first filter and a second filter, wherein the first filter is configured to adopt, by using the single-pole three-throw switch, the WiFi signal received from the second antenna a filter is shunted to the fourth single pole double throw switch,

The second filter is specifically configured to offload the cellular network signal received from the second antenna by the single-pole three-throw switch to the fifth single-pole double-throw switch by using the second filter.
The terminal device according to claim 9, wherein said switching circuit comprises a double pole double throw switch DPDT and a coupler, said coupler comprising a through end and a coupling end,

The seventh interface of the double-pole double-throw switch is connected to the wireless fidelity module, and the eighth interface of the double-pole double-throw switch is connected to the cellular module, and the ninth of the double-pole double-throw switch The interface is connected to a through end of the coupler, and a tenth interface of the double pole double throw switch is connected to a coupling end of the coupler, and the coupler is connected to the second antenna,

The coupler is configured to transmit the cellular network signal received from the second antenna to the double pole double throw switch through the through end;

The coupler is further configured to transmit the WiFi signal received from the second antenna to the double pole double throw switch through the coupling end.
A handover method, which is characterized in that it is applied to a terminal device, and the terminal is configured The device includes a wireless fidelity WiFi module, a cellular module, a switching circuit, a first antenna, and a second antenna, wherein the first antenna is a main set antenna for transmitting a WiFi signal, and the second antenna is a diversity of cellular network communication. An antenna that supports different cellular network communication bands, the WiFi module and the first antenna are electrically connected; the WiFi module and the cellular module are respectively electrically connected to the switching circuit; the switching circuit and the The second antenna is electrically connected, and the method includes:

When the cellular module and the WiFi module work simultaneously, the terminal device controls the switching circuit to electrically connect the cellular module to the second antenna through the switching circuit; and the WiFi module Electrically connecting to the second antenna by the switching circuit, transmitting the cellular network signal to the cellular module by using a link between the second antenna and the cellular module, and using the WiFi signal A link between the second antenna and the wireless fidelity module is transmitted to the wireless fidelity module.
The switching method according to claim 12, wherein the switching circuit comprises a fourth single pole double throw switch, a fifth single pole double throw switch, a single pole triple throw switch and a power splitter, wherein the fourth single pole double a moving end of the throw switch is connected to the wireless fidelity module, and a first fixed end of the fourth single pole double throw switch is connected to a first fixed end of the single pole triple throw switch, the fourth single pole double throw a second fixed end of the switch is connected to the power splitter, a moving end of the fifth single pole double throw switch is connected to the cellular module, and a second fixed end of the fifth single pole double throw switch is a third fixed end connection of the single-pole three-throw switch, the first fixed end of the fifth single-pole double-throw switch is connected to the power splitter, and the movable end of the single-pole three-throw switch is connected to the second antenna The second fixed end of the single-pole three-throw switch is connected to the power splitter,

The controlling, by the terminal device, the switching circuit includes:

Controlling a moving end of the fourth single pole double throw switch to be connected to a second fixed end of the fourth single pole double throw switch, the moving end of the fifth single pole double throw switch and the fifth single pole double throw switch The first fixed end is connected, and the movable end of the single-pole three-throw switch is connected to the second fixed end of the single-pole three-throw switch.
The switching method according to claim 12, wherein said switching circuit comprises a double pole double throw switch DPDT and a coupler, said coupler comprising a through end And a coupling end, wherein a seventh interface of the double pole double throw switch is connected to the wireless fidelity module, and an eighth interface of the double pole double throw switch is connected to the cellular module, the double pole double throw a ninth interface of the switch is connected to the through end of the coupler, a tenth interface of the double pole double throw switch is connected with a coupling end of the coupler, and the coupler is connected to the second antenna,

The controlling, by the terminal device, the switching circuit includes:

a seventh interface for controlling the double-pole double-throw switch is connected to a tenth interface of the double-pole double-throw switch, and an eighth interface of the double-pole double-throw switch is connected to a ninth interface of the double-pole double-throw switch .