Radio frequency front-end circuit, electronic equipment, and working mode switching method and device

Abstract

The embodiment of the invention discloses a radio frequency front-end circuit which is arranged in electronic equipment, the electronic equipment comprises a first SIM card and a second SIM card, the radio frequency front-end circuit comprises a transceiver, an L-PAMiD, an L-FEM, a first antenna and a second antenna, the first end of the transceiver is connected with one end of the L-PAMiD, the other end of the L-PAMiD is connected with the first antenna, the second end of the transceiver is connected with one end of the L-FEM, and the first antenna is connected with the second antenna. One end of the L-FEM is connected with the first antenna, the other end of the L-FEM is connected with the second antenna, the L-PAMiD is used for processing data which are transmitted and received by the first antenna and aim at the first SIM card, and the L-FEM is used for processing data which are transmitted and received by the second antenna and aim at the second SIM card, so that the electronic equipment realizes simultaneous communication of the first SIM card and the second SIM card through the radio frequency front-end circuit. The embodiment of the invention further provides the electronic equipment and a working mode switching method and device.

Description

Technical Field

[0001] The present application relates to dual-SIM dual-standby technology, and in particular to a radio frequency front-end circuit, an electronic device, and a method and device for switching working modes. Background Art

[0002] Currently, there are two modes for Dual SIM dual active (DSDA). The first mode is that each card has its own independent RF transceiver system, which does not interfere with each other and independently exchanges data, which can be called Full DSDA (FC) mode. The second mode is that each card does not have its own independent RF transceiver system, but shares a transceiver system through time division, which can be called Tx sharing DSDA mode.

[0003] However, the RF front-end circuit of the first mode occupies a large area, which brings difficulties to routing and layout. The second mode cannot perform data interaction at the same time, resulting in a decrease in throughput. Summary of the invention

[0004] The embodiments of the present application provide a radio frequency front-end circuit, an electronic device, a method for switching working modes, and a device, which can realize the simultaneous operation of dual cards while reducing the occupied space of the radio frequency front-end circuit.

[0005] The technical solution of this application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a radio frequency front-end circuit, which is arranged in an electronic device, the electronic device includes a first SIM card and a second SIM card, the radio frequency front-end circuit includes: a transceiver, an L-PAMiD, an L-FEM, a first antenna and a second antenna, the first end of the transceiver is connected to one end of the L-PAMiD, the other end of the L-PAMiD is connected to the first antenna, the second end of the transceiver is connected to one end of the L-FEM, and the other end of the L-FEM is connected to the second antenna; wherein,

[0007] L-PAMiD is used to process data for the first SIM card sent and received through the first antenna, and L-FEM is used to process data for the second SIM card sent and received through the second antenna, so that the electronic device can achieve simultaneous communication between the first SIM card and the second SIM card through the RF front-end circuit.

[0008] In a second aspect, an embodiment of the present application provides a radio frequency electronic device, comprising a radio frequency front-end circuit as described in one or more of the above embodiments.

[0009] In a third aspect, an embodiment of the present application provides a method for switching a working mode, which is applied to the electronic device described in one or more of the above embodiments, including:

[0010] determining a signal quality parameter of a signal received by the electronic device through a radio frequency front end circuit;

[0011] When the signal quality parameter of the received signal is greater than or equal to a preset threshold, controlling the radio frequency front-end circuit so that the electronic device switches to the first working mode;

[0012] When the signal quality parameter of the received signal is less than a preset threshold, controlling the radio frequency front-end circuit so that the electronic device switches to the second working mode;

[0013] The first working mode is a mode in which the first SIM card and the second SIM card communicate simultaneously; the second working mode is a mode in which the first SIM card and the second SIM card communicate in time-sharing manner.

[0014] In a fourth aspect, an embodiment of the present application provides a device for switching a working mode, which is provided in an electronic device as described in one or more of the above embodiments, and includes:

[0015] A determination module, used to determine a signal quality parameter of a signal received by the electronic device through a radio frequency front-end circuit;

[0016] A first control module, configured to control the radio frequency front-end circuit so that the electronic device switches to the first working mode when the signal quality parameter of the received signal is greater than or equal to a preset threshold;

[0017] A second control module, configured to control the RF front-end circuit to switch the electronic device to a second working mode when the signal quality parameter of the received signal is less than a preset threshold;

[0018] The first working mode is a mode in which the first SIM card and the second SIM card communicate simultaneously; the second working mode is a mode in which the first SIM card and the second SIM card communicate in time-sharing manner.

[0019] In a fifth aspect, an embodiment of the present application provides an electronic device, comprising: a processor and a storage medium storing instructions executable by the processor; the storage medium relies on the processor to perform operations through a communication bus, and when the instructions are executed by the processor, the method for switching the working mode described in one or more of the above embodiments is executed.

[0020] In a sixth aspect, an embodiment of the present application provides a computer storage medium storing executable instructions. When the executable instructions are executed by one or more processors, the processor executes the method for switching the working mode described in one or more of the above embodiments.

[0021] An embodiment of the present application provides a radio frequency front-end circuit, an electronic device, and a method and device for switching a working mode. The electronic device includes a first SIM card and a second SIM card. The radio frequency front-end circuit includes: a transceiver, an L-PAMiD, an L-FEM, a first antenna and a second antenna. The first end of the transceiver is connected to one end of the L-PAMiD, and the other end of the L-PAMiD is connected to the first antenna. The second end of the transceiver is connected to one end of the L-FEM, and the other end of the L-FEM is connected to the second antenna. The L-PAMiD is used to process data for the first SIM card sent and received through the first antenna, and the L-FEM is used to process data sent and received through the second antenna. The data of the second SIM card is processed so that the electronic device can realize simultaneous communication between the first SIM card and the second SIM card through the RF front-end circuit; that is, in the embodiment of the present application, the data of the first SIM card is received and sent by the transceiver link where the L-PAMiD is located, and the data of the second SIM card is received and sent by the transceiver link where the L-FEM is located. In this way, the architecture of the RF front-end circuit of L-PAMiD+L-FEM can realize the simultaneous transmission and reception of data by the two cards. In this way, while realizing the simultaneous operation of the two cards, the occupied space of the RF front-end circuit in the electronic device is reduced, and the complexity of the layout and routing is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1a It is a structural schematic diagram of a radio frequency front-end circuit in the related art;

[0023] Figure 1b It is a structural schematic diagram of a radio frequency front-end circuit 2 in the related art;

[0024] Figure 2 A schematic diagram of the structure of an optional radio frequency front-end circuit provided in an embodiment of the present application;

[0025] Figure 3 A first structural diagram of an optional electronic device provided in an embodiment of the present application;

[0026] Figure 4 A schematic diagram of a flow chart of an optional method for switching working modes provided in an embodiment of the present application;

[0027] Figure 5 A schematic diagram of the structure of an example of an optional radio frequency front-end circuit provided in an embodiment of the present application;

[0028] Figure 6 A flowchart of an example of an optional working mode switching method provided in an embodiment of the present application;

[0029] Figure 7 A schematic diagram of the structure of an optional working mode switching device provided in an embodiment of the present application;

[0030] Figure 8 A schematic diagram of an optional electronic device provided in an embodiment of the present application Figure 2 . DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0032] Figure 1a FIG. 1 is a schematic diagram of a structure of a radio frequency front-end circuit in a related art. Figure 1a As shown, the RF front-end circuit includes: Software-Defined Radio (SDR) 11a, RF front-end module (Low noise amplifier Power amplifier Module integrated Duplexer, L-PAMiD) 12a, L-PAMiD13a, antenna (Antenna, ANT) 0a, ANT1a, ANT2a and ANT3a that integrates power amplifier, low noise amplifier, coupler, RF switch, filter, duplexer / multiplexer, etc.

[0033] Among them, SDR11a can be a transceiver; ANT0a is a primary receive (PRx) antenna, ANT1a is a diversity receive (DRx) antenna; ANT2a is a multiple-input multiple-output (MIMO) antenna of PRx, and ANT3a is a MIMO antenna of DRx.

[0034] Among them, L-PAMiD12a is connected to the Tx0a, Rx0a and Rx1a ends of SDR11a, and L-PAMiD12a is also connected to ANT0a and ANT1a to form Tx0a link, Rx0a link and Rx1a link, which is used to send and receive data for SIM card 1; L-PAMiD13a is connected to the Tx1a, Rx2a and Rx3a ends of SDR11a, and L-PAMiD13a is also connected to ANT2a and ANT3a to form Tx1a link, Rx2a link and Rx3a link, which is used to send and receive data for SIM card 2.

[0035] It can be seen that when electronic devices use Figure 1a In the radio frequency front-end circuit, each SIM card in the electronic device has its own independent radio frequency transceiver system, which does not interfere with each other and independently performs data interaction. A single card can perform two transmission links and four reception links (2T4R).

[0036] Figure 1b Schematic diagram of the structure of the RF front-end circuit 2 in the related art, such as Figure 1b As shown, the RF front-end circuit includes: SDR11b, L-PAMiD12b, a RF front-end module (Low noise amplifier Front-end Module, L-FEM) 13b integrated with a low noise amplifier, L-FEM14b, ANT0b, ANT1b, ANT2b and ANT3b.

[0037] Among them, SDR11b can be a transceiver; ANT0b is a PRx antenna, ANT1b is a DRx antenna, ANT2a is a MIMO antenna of PRx, and ANT3a is a MIMO antenna of DRx.

[0038] Among them, L-PAMiD12b is connected to the Tx0b end, Rx0b end and Rx1b end of SDR11b, and L-PAMiD12b is also connected to ANT0b and ANT1b to form a Tx0b link, an Rx0b link and an Rx1b link. The Tx0b link is used to transmit data for SIM card 1 and SIM card 2, and the Rx0b link and the Rx1b link are used to receive data for SIM card 1; L-FEM13b is connected to the Rx2a end of SDR11a, L-FEM13b is connected to ANT2a to form an Rx2a link, L-FEM14b is connected to the Rx3a end of SDR11a, and L-FEM14b is connected to ANT3a to form an Rx3a link, which is used to receive data for SIM card 2.

[0039] It can be seen that when electronic devices use Figure 1b In the RF front-end circuit, each card does not have its own independent RF transceiver system, but shares a set of transceiver systems in a time-division manner, so that a single card can have one transmission link and four reception links (1T4R).

[0040] Regarding the above Figure 1a For the RF front-end circuit, two N78 band L-PAMiDs are required, which are relatively expensive and occupy a large area. Because the power supply routing is more complicated, it will make the routing and layout of the printed circuit board (PCB) more difficult. Figure 1b For the RF front-end circuit, two cards need to share a transceiver system, and data cannot be exchanged at the same time, the throughput will decrease, which will greatly affect the user experience.

[0041] In view of the technical problem that two SIM cards have independent radio frequency front-end links, which occupy a large area and cause complex layout and routing, an embodiment of the present application provides a radio frequency front-end circuit, which is arranged in an electronic device, and the electronic device includes a first SIM card and a second SIM card. Figure 2 A schematic diagram of the structure of an optional RF front-end circuit provided in an embodiment of the present application, such as Figure 2 As shown, the RF front-end circuit 200 may include: a transceiver 21, an L-PAMiD 22, an L-FEM 23, a first antenna 24 and a second antenna 25; wherein,

[0042] The first end of the transceiver 21 is connected to one end of the L-PAMiD 22, the other end of the L-PAMiD 22 is connected to the first antenna 24, the second end of the transceiver 21 is connected to one end of the L-FEM 23, the other end of the L-FEM 23 is connected to the second antenna 25; wherein,

[0043] L-PAMiD22 is used to process data for the first SIM card sent and received through the first antenna 24, and L-FEM23 is used to process data for the second SIM card sent and received through the second antenna 25, so that the electronic device can realize simultaneous communication between the first SIM card and the second SIM card through the RF front-end circuit 200.

[0044] In the embodiment of the present application, the interconnection between the transceiver 21, L-PAMiD22 and the first antenna 24 constitutes a radio frequency front-end link for the first SIM card, which can transmit and receive data of the first SIM card. The interconnection between the transceiver 21, L-FEM23 and the first antenna 25 constitutes a radio frequency front-end link for the second SIM card, which can transmit and receive data of the second SIM card. Among them, here, one L-PAMiD and one L-FEM are used to realize data communication between two SIM cards at the same time, which reduces the occupied area of ​​the radio frequency front-end circuit and reduces the complexity of layout and routing.

[0045] It should be noted that the interconnection between the above transceiver 21, L-PAMiD22 and the first antenna 24 constitutes a radio frequency front-end link for the first SIM card, which may include: at least one transmission link and at least one reception link, so as to realize the transceiver 21, L-FEM23 and the second antenna 25. The interconnection constitutes a radio frequency front-end link for the second SIM card, which may include: at least one transmission link and at least one reception link, so as to realize the transceiver 21, L-FEM23 and the second antenna 25. The second SIM card can be connected to the radio frequency front-end link, which can be connected to the second SIM card.

[0046] Among them, the above-mentioned L-PAMiD22 can also be connected to the L-FEM23 to send the transmission power of the power amplifier (Power amplifier, PA) to the L-FEM23.

[0047] In addition, it should be emphasized that in addition to realizing the simultaneous working mode of the first SIM card and the second SIM card, the RF front-end circuit 200 can also realize the time-sharing working mode of the first SIM card and the second SIM card under the control of the electronic device. Here, the embodiment of the present application does not make specific limitations on this.

[0048] With respect to the RF front-end link for the first SIM card formed by the interconnection between the above-mentioned transceiver 21, L-PAMiD22 and the first antenna 24, the first antenna 24 receives data, and L-PAMiD22 processes the received data by means of a filter, a low noise amplifier, etc., so that the transceiver 21 receives the processed data; in addition, the transceiver 21 generates transmission data, and L-PAMiD22 processes the received data by means of a power amplifier, a filter, etc., and transmits the processed data through the first antenna 24.

[0049] With respect to the interconnection between the above-mentioned transceiver 21, L-FEM23 and the second antenna 25 constituting the RF front-end link for the second SIM card, the second antenna 25 receives data, and the L-FEM23 processes the received data by a filter, a low-noise amplifier, etc., so that the transceiver 21 receives the processed data; in addition, the transceiver 21 generates transmission data, and the L-FEM23 processes the received data by a power amplifier, a filter, etc., and transmits the processed data through the second antenna 25.

[0050] The number of the first antennas 24 may include one, two or more than two, and the number of the second antennas 25 may include one, two or more than two. Here, the embodiment of the present application specifically defines this.

[0051] For the radio frequency front-end link of the second SIM card, in an optional embodiment, the number of the second antenna is one; wherein,

[0052] The signal receiving end of the transceiver is connected to the signal output end of the L-FEM, the signal transmitting end of the transceiver is connected to the signal input end of the L-FEM, and the signal transmitting end of the L-FEM and the signal receiving end of the L-FEM are respectively connected to the second antenna.

[0053] It can be understood that, for the case where there is only one second antenna, in order to realize data communication of the second SIM card using the radio frequency link of the transceiver, L-FEM and the second antenna, here, the signal receiving end of the transceiver for the L-FEM is connected to the signal output end of the L-FEM, and the signal receiving end of the L-FEM is connected to the second antenna, thereby forming a receiving link for the second SIM card.

[0054] In addition, the signal transmitting end of the transceiver for L-FEM is connected to the signal input end of L-FEM, and the signal transmitting end of L-FEM is connected to the second antenna, forming a transmission link for the second SIM card. Among them, the power input end of L-FEM is connected to L-PAMiD, so that L-PAMiD transmits the transmission power of PA to L-FEM to achieve amplification of the signal to be transmitted.

[0055] In this way, a radio frequency front-end link for the second SIM card is formed by interconnecting the transceiver, the L-FEM and the second antenna, and transceiver for the second SIM card is realized through a second antenna, thereby reducing the occupied area of ​​the radio frequency front-end circuit and realizing the simultaneous use of dual cards.

[0056] For the case where the number of the second antennas is two, in an optional embodiment, the number of the second antennas is two;

[0057] The signal receiving end of the transceiver is connected to the signal output end of the L-FEM, the signal transmitting end of the transceiver is connected to the signal input end of the L-FEM, the power input end of the L-FEM is connected to the L-PAMiD, the signal receiving end of the L-FEM is connected to one of the second antennas, and the signal transmitting end of the L-FEM is connected to the other second antenna;

[0058] The L-FEM is used to process data for the second SIM card received through one of the second antennas, and the L-FEM is used to process data for the second SIM card transmitted through another second antenna, so that the electronic device can achieve simultaneous communication between the first SIM card and the second SIM card through the radio frequency front-end circuit.

[0059] It can be understood that, different from the connection method of one second antenna, the signal receiving end of the L-FEM is connected to one of the second antennas, and the signal transmitting end of the L-FEM is connected to the other second antenna, that is, the transceiver, the L-FEM and one of the second antennas constitute the receiving link of the second SIM card, and the transceiver, the L-FEM and the other second antenna constitute the transmitting link of the second SIM card, so that data for the second SIM card can be received through one of the second antennas, and data for the second SIM card can be transmitted through the other second antenna.

[0060] In this way, the data of the second SIM card is received and transmitted respectively through the two second antennas, so that the second SIM card can receive and transmit at the same time, thereby realizing the simultaneous use of dual cards while reducing the occupied area of ​​the RF front-end circuit.

[0061] In addition, for the above-mentioned RF front-end circuit, in an optional embodiment, the L-PAMiD is used to process the data sent and received through the first antenna, and the L-FEM is used to process the data for the second SIM card transmitted or received through the second antenna, so that the electronic device realizes time-sharing communication between the first SIM card and the second SIM card through the RF front-end circuit;

[0062] The data received and sent by the first antenna includes: data received and sent by the first antenna for the first SIM card, and data received or transmitted by the first antenna for the second SIM card.

[0063] It can be understood that in addition to the first antenna realizing data reception and transmission for the first SIM card and the second antenna realizing data reception and transmission for the second SIM card, that is, in addition to the mode in which the first SIM card and the second SIM card work simultaneously, the first SIM card and the second SIM card can also work in a time-sharing mode.

[0064] Here, in order to realize the time-sharing working mode of the first SIM card and the second SIM card, the first antenna is used to send and receive data of the first SIM card, and the first antenna is used to receive or transmit data for the second SIM card, wherein if the first antenna receives data for the second SIM card, then the second antenna transmits data for the second SIM card, and if the first antenna transmits data for the second SIM card, then the second antenna receives data for the second SIM card.

[0065] In this way, the RF front-end circuit can also realize the time-sharing working mode of the first SIM card and the second SIM card. In this way, the RF front-end circuit can be controlled according to the needs of the electronic device to improve the communication performance of the dual-card electronic device.

[0066] In the time-sharing working mode, for the case where the number of the second antennas is two, in an optional embodiment, the number of the second antennas is two; wherein,

[0067] The first signal receiving end of the transceiver is connected to the first signal output end of the L-FEM, the second signal receiving end of the transceiver is connected to the second signal output end of the L-FEM, the first signal receiving end of the L-FEM is connected to one of the second antennas, and the second signal receiving end of the L-FEM is connected to the other second antenna; wherein,

[0068] L-FEM is used to process data for the second SIM card received through one of the second antennas, L-FEM is used to process data for the second SIM card received through another second antenna, and L-PAMiD is used to process data for the second SIM card transmitted through the first antenna, so that the electronic device can realize time-sharing communication between the first SIM card and the second SIM card through the radio frequency front-end circuit.

[0069] It can be understood that when there are two second antennas, the first signal receiving end of the transceiver is connected to the first signal output end of the L-FEM, and the first signal receiving end of the L-FEM is connected to one of the second antennas, forming a receiving link for the second SIM card, and the second signal receiving end of the transceiver is connected to the second signal output end of the L-FEM, and the second signal receiving end of the L-FEM is connected to the other second antenna, forming another receiving link for the second SIM card. In this way, two receiving links for the second SIM card are formed.

[0070] Furthermore, in order to realize data transmission of the second SIM card, here, the first antenna can be used to receive data transmission for the second SIM card. Specifically, the transmission link where the first antenna is located is used to realize data transmission of the first SIM card and data transmission of the second SIM card in a time-sharing manner.

[0071] In this way, the first antenna is used to receive and send data from the first SIM card and transmit data from the second SIM card, and the second antenna is used to receive data from the second SIM card, thereby achieving time-sharing use of the first SIM card and the second SIM card.

[0072] In addition, in the time-sharing working mode, for the case where the number of the second antennas is two, in an optional embodiment, the number of the second antennas is two; wherein,

[0073] The first signal transmitting end of the transceiver is connected to the first signal input end of the L-FEM, the second signal transmitting end of the transceiver is connected to the second signal input end of the L-FEM, the first signal transmitting end of the L-FEM is connected to one of the second antennas, and the second signal transmitting end of the L-FEM is connected to the other second antenna; wherein,

[0074] L-FEM is used for data for the second SIM card transmitted through one of the second antennas, L-FEM is used for data for the second SIM card transmitted through another second antenna, and L-PAMiD is used for data for the second SIM card received through the first antenna, so that the electronic device can realize time-sharing communication between the first SIM card and the second SIM card through the RF front-end circuit.

[0075] It can be understood that when there are two second antennas, the first signal transmitting end of the transceiver is connected to the first signal input end of the L-FEM, and the first signal transmitting end of the L-FEM is connected to one of the second antennas, forming a transmission link for the second SIM card, and the second signal transmitting end of the transceiver is connected to the second signal input end of the L-FEM, and the second signal transmitting end of the L-FEM is connected to the other second antenna, forming another transmission link for the second SIM card. In this way, two transmission links for the second SIM card are formed.

[0076] Furthermore, in order to realize data reception of the second SIM card, here, the first antenna can be used to receive data for the second SIM card. Specifically, the receiving link where the first antenna is located is used to realize data reception of the first SIM card and data reception of the second SIM card in a time-sharing manner.

[0077] In this way, the first antenna is used to send and receive data from the first SIM card and receive data from the second SIM card, and the second antenna is used to transmit data from the second SIM card, thereby achieving time-sharing use of the first SIM card and the second SIM card.

[0078] An embodiment of the present application provides an electronic device, Figure 3 A schematic diagram of an optional electronic device provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, the electronic device 300 includes the RF front-end circuit 200 as described in one or more of the above embodiments.

[0079] The present application provides a method for switching a working mode. Figure 4 A flow chart of an optional method for switching working modes is provided for the present application example. Figure 4 As shown, the method for switching the working mode may include:

[0080] S401: Determine a signal quality parameter of a signal received by the electronic device through a radio frequency front-end circuit;

[0081] In the embodiment of the present application, in order to determine the working mode of the RF front-end circuit at this time, the electronic device needs to obtain signal quality parameters of the received signal, wherein the signal quality parameters of the signal received through the first antenna and the second antenna need to be obtained.

[0082] In an optional embodiment, S401 may include: receiving a first detection signal through a first antenna; receiving a second detection signal through a second antenna; and determining a signal quality parameter of the received signal based on a signal quality parameter of the first detection signal and a signal quality parameter of the second detection signal.

[0083] That is to say, the signal quality parameter of the first detection signal and the signal quality parameter of the second detection signal can be averaged, combined and median to obtain the signal quality parameter of the received signal. The signal quality parameter can be a received signal strength indication (RSSI) or a data transmission rate of an electronic device, etc. Here, the embodiment of the present application does not make specific limitations on this.

[0084] S402: When the signal quality parameter of the received signal is greater than or equal to a preset threshold, control the radio frequency front-end circuit so that the electronic device switches to the first working mode;

[0085] S403: When the signal quality parameter of the received signal is less than a preset threshold, control the RF front-end circuit to switch the electronic device to the second working mode.

[0086] After determining the signal quality parameter of the received signal through the above S401, it is compared with the preset threshold. After comparison, if the signal quality parameter of the received signal is greater than or equal to the preset threshold, it means that the signal is strong at this time, so the first working mode can be used, wherein the first working mode is: a mode in which the first SIM card and the second SIM card communicate simultaneously; a mode in which the first SIM card and the second SIM card communicate simultaneously will be adopted when the signal is strong.

[0087] If the signal quality parameter of the received signal is less than the preset threshold, it means that the signal is weak at this time, so the second working mode can be used, wherein the second working mode is: a mode of time-sharing communication between the first SIM card and the second SIM card. In other words, the mode of time-sharing communication between the first SIM card and the second SIM card will be used when the signal is weak.

[0088] In this way, in the embodiment of the present application, the signal quality parameters of the received signal are obtained to determine the signal strength of the current electronic device, thereby controlling the RF front-end circuit to select a suitable working mode for the first SIM card and the second SIM card, thereby improving the throughput of dual-card communication while reducing the occupied area of ​​the RF front-end circuit.

[0089] With respect to the above-mentioned first working mode and second working mode, in an optional embodiment, the first working mode is a working mode in which the L-PAMiD is used to process data for the first SIM card sent and received through the first antenna, and the L-FEM is used to process data for the second SIM card sent and received through the second antenna;

[0090] The second working mode is a working mode in which the L-PAMiD is used to process data sent and received through the first antenna, and the L-FEM is used to transmit or receive data for the second SIM card through the second antenna;

[0091] The data received and sent by the first antenna includes: data received and sent by the first antenna for the first SIM card, and data received or transmitted by the first antenna for the second SIM card.

[0092] It can be understood that in the above-mentioned first working mode, the first antenna sends and receives data for the first SIM card, and the second antenna sends and receives data for the second SIM card, so that the first SIM card and the second SIM card in the electronic device communicate simultaneously.

[0093] In the above second working mode, one mode is: the first antenna sends and receives data for the first SIM card, and the first antenna receives data for the second SIM card, and the second antenna transmits data for the second SIM card. Another mode is: the first antenna sends and receives data for the first SIM card, and the first antenna transmits data for the second SIM card, and the second antenna receives data for the second SIM card.

[0094] In this way, by controlling the RF front-end circuit by the electronic device, the two SIM cards in the electronic device can realize a simultaneous communication mode or a time-sharing communication mode, thereby switching the electronic device to a suitable working mode, which is beneficial to improving the communication performance of the electronic device.

[0095] The following examples are used to describe the RF front-end circuit and the method for switching the working mode described in one or more of the above embodiments.

[0096] Figure 5 A schematic diagram of the structure of an example of an optional RF front-end circuit provided in an embodiment of the present application, such as Figure 5 As shown, Figure 1a In comparison, L-PAMiD13b is replaced with L-FEM51, a signal input terminal of SDR11a is connected to a signal output terminal of L-FEM51, another signal input terminal of SDR11a is connected to another signal output terminal of L-FEM51, the signal transmitting terminal of SDR11a is connected to the signal input terminal of L-FEM51, ANT2a is connected to the signal input terminal of L-FEM51, and ANT3a is connected to the signal output / input terminal of L-FEM51.

[0097] That is to say, Figure 1a and Figure 1bAn improvement is made on the basis of the solution. Without increasing the cost, ANT0a and ANT1a respectively transmit and receive data for the first SIM card, ANT2a receives data for the second SIM card, and ANT3a transmits data for the second SIM card. The two SIM cards have two independent transceiver systems.

[0098] However, under weak signals, the transmission power superior to SDR is relatively low compared to the PA, and the effect of Full DSDA (FC) mode cannot be achieved. According to Tx sharing DSDA mode, ANT0a and ANT1a respectively transmit and receive data for the first SIM card, and ANT0a transmits data for the second SIM card, and ANT2a receives data for the second SIM card.

[0099] Based on the above Figure 5 RF front-end circuit, Figure 6 A flowchart of an example of an optional working mode switching method provided in an embodiment of the present application is shown as follows: Figure 6 The method for switching the working mode may include:

[0100] S601: Determine whether it is a dual SIM card. If yes, execute S602; if no, execute S603;

[0101] S602: Determine whether RSSI is greater than or equal to 95dB? If yes, execute S604; if no, execute S603;

[0102] S603: Control is performed according to time-sharing communication.

[0103] S604: Control is performed according to simultaneous communication.

[0104] Specifically, electronic equipment includes Figure 5 The RF front-end circuit determines whether there are dual SIM cards. If yes, continue to judge through Figure 5 Whether the RSSI of the signal received by the RF front-end circuit is greater than or equal to 95dB, if yes, the RF front-end circuit is controlled to make the dual SIM cards work in a simultaneous communication mode; if not, the RF front-end circuit is controlled to make the dual SIM cards work in a time-sharing communication mode; if there are dual SIM cards, or the RSSI of the signal received by the RF front-end circuit is less than 95dB, the RF front-end circuit is controlled to make the dual SIM cards work in a time-sharing communication mode.

[0105] Through the above example, in the relatively strong signal environment of the subway, the simultaneous communication of dual SIM cards is ensured while reducing the occupied area of ​​the RF front-end circuit.

[0106] An embodiment of the present application provides a radio frequency front-end circuit, which is arranged in an electronic device, and the electronic device includes a first SIM card and a second SIM card. The radio frequency front-end circuit includes: a transceiver, an L-PAMiD, an L-FEM, a first antenna and a second antenna. The first end of the transceiver is connected to one end of the L-PAMiD, the other end of the L-PAMiD is connected to the first antenna, the second end of the transceiver is connected to one end of the L-FEM, the other end of the L-FEM is connected to the second antenna, the L-PAMiD is used to process the data for the first SIM card sent and received through the first antenna, and the L-FEM is used to process the data for the second SIM card sent and received through the second antenna. The data of the SIM card is processed so that the electronic device can realize simultaneous communication between the first SIM card and the second SIM card through the RF front-end circuit; that is, in the embodiment of the present application, the data of the first SIM card is sent and received by the transceiver link where the L-PAMiD is located, and the data of the second SIM card is sent and received by the transceiver link where the L-FEM is located. In this way, the architecture of the RF front-end circuit of L-PAMiD+L-FEM can realize the simultaneous transmission and reception of data by the dual cards. In this way, while realizing the simultaneous operation of the dual cards, the occupied space of the RF front-end circuit in the electronic device is reduced, and the complexity of the layout and routing is reduced.

[0107] Based on the same inventive concept as the above embodiments, an embodiment of the present application provides a device for switching a working mode, which is arranged in the electronic device described in one or more of the above embodiments. Figure 7 A schematic diagram of a structure of an optional working mode switching device provided in an embodiment of the present application, such as Figure 7 As shown, the switching device of the working mode includes: a determination module 71, a first control module 72 and a second control module 72; wherein,

[0108] A determination module 71, configured to determine a signal quality parameter of a signal received by the electronic device through a radio frequency front-end circuit;

[0109] A first control module 72, configured to control the RF front-end circuit to switch the electronic device to the first working mode when the signal quality parameter of the received signal is greater than or equal to a preset threshold;

[0110] A second control module 73, configured to control the RF front-end circuit to switch the electronic device to the second working mode when the signal quality parameter of the received signal is less than a preset threshold;

[0111] The first working mode is a mode in which the first SIM card and the second SIM card communicate simultaneously; the second working mode is a mode in which the first SIM card and the second SIM card communicate in time-sharing manner.

[0112] In an optional embodiment, the first working mode is a working mode in which the L-PAMiD is used to process data for the first SIM card sent and received through the first antenna, and the L-FEM is used to process data for the second SIM card sent and received through the second antenna;

[0113] The second working mode is a working mode in which the L-PAMiD is used to process data sent and received through the first antenna, and the L-FEM is used to transmit or receive data for the second SIM card through the second antenna;

[0114] The data received and sent by the first antenna includes: data received and sent by the first antenna for the first SIM card, and data received or transmitted by the first antenna for the second SIM card.

[0115] In practical applications, the above-mentioned determination module 71, the first control module 72 and the second control module 72 can be implemented by a processor located on the working mode switching device, specifically a central processing unit (CPU), a microprocessor (MPU), a digital signal processor (DSP) or a field programmable gate array (FPGA).

[0116] Figure 8 A schematic diagram of an optional electronic device provided in an embodiment of the present application Figure 2 ,like Figure 8 As shown, an embodiment of the present application provides an electronic device 800, including:

[0117] A processor 81 and a storage medium 82 storing instructions executable by the processor; the storage medium 82 relies on the processor 81 to perform operations through a communication bus 83, and when the instructions are executed by the processor, the working mode switching method executed by the processor side in one or more of the above embodiments is executed.

[0118] It should be noted that in actual application, the various components in the computer device are coupled together through the communication bus 83. It is understandable that the communication bus 83 is used to realize the connection and communication between these components. In addition to the data bus, the communication bus 83 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, Figure 8 Various buses are labeled as communication buses 83.

[0119] An embodiment of the present application provides a computer storage medium storing executable instructions. When the executable instructions are executed by one or more processors, the processors execute the method for switching the working mode described in one or more of the above embodiments.

[0120] Among them, the computer-readable storage medium can be a ferromagnetic random access memory (FRAM), 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), a flash memory, a magnetic surface memory, an optical disk, or a compact disc read-only memory (CD-ROM) and other memories.

[0121] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of hardware embodiments, software embodiments, or embodiments in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0122] The present application is described with reference to the flowchart and / or block diagram of the method, device (system) and computer program product according to the embodiment of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, and the combination of the process and / or box in the flowchart and / or block diagram can be realized by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for realizing the function specified in one process or multiple processes in the flowchart and / or one box or multiple boxes in the block diagram.

[0123] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0124] These computer program instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0125] The above description is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application.

Claims

1. A radio frequency front-end circuit, characterized in that: Set in an electronic device, the electronic device includes a first SIM card and a second SIM card, and the RF front-end circuit includes: a transceiver, an L-PAMiD, an L-FEM, a first antenna and a second antenna; wherein the first end of the transceiver is connected to one end of the L-PAMiD, the other end of the L-PAMiD is connected to the first antenna, the second end of the transceiver is connected to one end of the L-FEM, and the other end of the L-FEM is connected to the second antenna; wherein, The L-PAMiD is used to process data for the first SIM card sent and received through the first antenna, and the L-FEM is used to process data for the second SIM card sent and received through the second antenna, so that the electronic device can realize simultaneous communication between the first SIM card and the second SIM card through the RF front-end circuit.

2. The circuit according to claim 1, characterized in that The number of the second antenna is one; wherein, The signal receiving end of the transceiver is connected to the signal output end of the L-FEM, the signal transmitting end of the transceiver is connected to the signal input end of the L-FEM, and the signal transmitting end of the L-FEM and the signal receiving end of the L-FEM are respectively connected to the second antenna.

3. The circuit according to claim 1 or 2, characterized in that: The number of the second antennas is two; wherein the signal receiving end of the transceiver is connected to the signal output end of the L-FEM, the signal transmitting end of the transceiver is connected to the signal input end of the L-FEM, the power input end of the L-FEM is connected to the L-PAMiD, the signal receiving end of the L-FEM is connected to one of the second antennas, and the signal transmitting end of the L-FEM is connected to the other second antenna; wherein, The L-FEM is used to process data for the second SIM card received through one of the second antennas, and the L-FEM is used to process data for the second SIM card transmitted through another second antenna, so that the electronic device realizes simultaneous communication between the first SIM card and the second SIM card through the RF front-end circuit.

4. The circuit according to claim 1 or 2, characterized in that: The L-PAMiD is used to process data sent and received through the first antenna, and the L-FEM is used to process data for the second SIM card transmitted or received through the second antenna, so that the electronic device realizes time-sharing communication between the first SIM card and the second SIM card through the radio frequency front-end circuit; The data received and sent by the first antenna includes: data received and sent by the first antenna for the first SIM card, and data received or transmitted by the first antenna for the second SIM card.

5. The circuit according to claim 4, characterized in that The number of the second antennas is two; wherein the first signal receiving end of the transceiver is connected to the first signal output end of the L-FEM, the second signal receiving end of the transceiver is connected to the second signal output end of the L-FEM, the first signal receiving end of the L-FEM is connected to one of the second antennas, and the second signal receiving end of the L-FEM is connected to the other second antenna; wherein, The L-FEM is used to process data for the second SIM card received through one of the second antennas, the L-FEM is used to process data for the second SIM card received through another second antenna, and the L-PAMiD is used to process data for the second SIM card transmitted through the first antenna, so that the electronic device realizes time-sharing communication between the first SIM card and the second SIM card through the RF front-end circuit.

6. The circuit according to claim 4, characterized in that The number of the second antennas is two; wherein the first signal transmitting end of the transceiver is connected to the first signal input end of the L-FEM, the second signal transmitting end of the transceiver is connected to the second signal input end of the L-FEM, the first signal transmitting end of the L-FEM is connected to one of the second antennas, and the second signal transmitting end of the L-FEM is connected to the other second antenna; wherein, The L-FEM is used for data for the second SIM card transmitted through one of the second antennas, the L-FEM is used for data for the second SIM card transmitted through another second antenna, and the L-PAMiD is used for data for the second SIM card received through the first antenna, so that the electronic device realizes time-sharing communication between the first SIM card and the second SIM card through the RF front-end circuit.

7. An electronic device, characterized in that: Comprising the radio frequency front-end circuit as described in any one of claims 1 to 6.

8. A method for switching a working mode, characterized in that: Applicable to the electronic device as claimed in claim 7, comprising: determining a signal quality parameter of a signal received by the electronic device through the radio frequency front-end circuit; When the signal quality parameter of the received signal is greater than or equal to a preset threshold, controlling the radio frequency front-end circuit so that the electronic device switches to the first working mode; When the signal quality parameter of the received signal is less than a preset threshold, controlling the radio frequency front-end circuit so that the electronic device switches to the second working mode; The first working mode is a mode in which the first SIM card and the second SIM card communicate simultaneously; the second working mode is a mode in which the first SIM card and the second SIM card communicate in a time-sharing manner.

9. The method according to claim 8, characterized in that The first working mode is a working mode in which the L-PAMiD is used to process data for the first SIM card sent and received through the first antenna, and the L-FEM is used to process data for the second SIM card sent and received through the second antenna; The second working mode is a working mode in which the L-PAMiD is used to process data sent and received through the first antenna, and the L-FEM is used to transmit or receive data for the second SIM card through the second antenna; The data received and sent by the first antenna includes: data received and sent by the first antenna for the first SIM card, and data received or transmitted by the first antenna for the second SIM card.

10. A device for switching a working mode, characterized in that: The electronic device as claimed in claim 7 comprises: A determination module, used to determine a signal quality parameter of a signal received by the electronic device through the radio frequency front-end circuit; A first control module, configured to control the RF front-end circuit so that the electronic device switches to a first working mode when a signal quality parameter of the received signal is greater than or equal to a preset threshold; A second control module, configured to control the RF front-end circuit so that the electronic device switches to a second working mode when the signal quality parameter of the received signal is less than a preset threshold; The first working mode is a mode in which the first SIM card and the second SIM card communicate simultaneously; the second working mode is a mode in which the first SIM card and the second SIM card communicate in a time-sharing manner.

11. An electronic device, characterized in that: include: A processor and a storage medium storing instructions executable by the processor; The storage medium relies on the processor to perform operations through the communication bus. When the instructions are executed by the processor, the working mode switching method described in claim 8 or 9 is executed.

12. A computer storage medium, characterized in that: Executable instructions are stored, and when the executable instructions are executed by one or more processors, the processors execute the working mode switching method described in claim 8 or 9.

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