Radio frequency front-end circuit, electronic equipment, control 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 supports two SIM (Subscriber Identity Module) cards, the two SIM cards use a first frequency band and a second frequency band to carry out data communication, and the radio frequency front-end circuit comprises a power amplifier of the first frequency band, a voltage output end of a battery of the electronic equipment is connected with a power supply end of the power amplifier of the first frequency band, and the battery is used for supplying power to the power amplifier of the first frequency band, so that the two SIM cards realize full-time dual-card bi-pass. The embodiment of the invention further provides the electronic equipment, and a control method and device.

Description

Technical Field

[0001] The present application relates to dual SIM dual active (DSDA) technology, and in particular to a radio frequency front-end circuit, electronic equipment, control method and device. Background Art

[0002] Currently, DSDA has two modes: full concurrency Dual SIM dual active (FC-DSDA) and time-sharing dual SIM dual active (Tx-SharingDSDA).

[0003] Among them, for FC-DSDA, two sets of transmission paths are required for implementation, namely transmission link 1 and transmission link 2. The power supply end of power amplifier (PA) 1 in transmission link 1 is connected to direct current to direct current (DCDC) 1 to power PA1, and the power supply end of PA2 in transmission link 2 is connected to DCDC2 to power PA2.

[0004] However, the above power supply method requires a DCDC to be used for each PA, which increases the occupied space in the mobile phone. Summary of the invention

[0005] The embodiments of the present application provide a radio frequency front-end circuit, an electronic device, a control method and a device, which can reduce the internal space of the electronic device when dual-SIM dual-channel is achieved.

[0006] The technical solution of this application is implemented as follows:

[0007] 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 supports two subscriber identity modules (SIM) cards, the two SIM cards use a first frequency band and a second frequency band for data communication, and the radio frequency front-end circuit includes: a power amplifier of the first frequency band; a voltage output end of a battery of the electronic device is connected to a power supply end of the power amplifier of the first frequency band; wherein,

[0008] The battery is used to supply power to the power amplifier of the first frequency band, so that the two SIM cards can realize full-time dual-card dual-communication.

[0009] 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.

[0010] In a third aspect, an embodiment of the present application provides a control method, which is applied to the electronic device described in one or more of the above embodiments, including:

[0011] Determine the frequency band currently used by the electronic device;

[0012] According to the currently used frequency band, the first switch and the second switch are controlled to achieve full-time dual-card dual-communication or single-card communication.

[0013] In a fourth aspect, an embodiment of the present application provides a control device, which is provided in the electronic device as described in one or more of the above embodiments, including:

[0014] A determination module, used to determine the current frequency band used by the electronic device;

[0015] The first control module is used to control the first switch and the second switch according to the currently used frequency band to achieve dual-card dual-communication or single-card communication.

[0016] 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 control method described in one or more of the above embodiments is executed.

[0017] 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 control method described in one or more of the above embodiments.

[0018] The embodiment of the present application provides a radio frequency front-end circuit, an electronic device, a control method and an apparatus. The electronic device supports two SIM cards. The two SIM cards use a first frequency band and a second frequency band for data communication. The radio frequency front-end circuit includes: a power amplifier of the first frequency band. The voltage output end of a battery of the electronic device is connected to the power supply end of the power amplifier of the first frequency band. The battery is used to power the power amplifier of the first frequency band, so that the two SIM cards can achieve full-time dual-card dual-pass. That is to say, in the embodiment of the present application, the power supply end of the PA of the transmission link where the frequency band used by at least one SIM card is located is connected to the voltage output end of the battery, so that the number of DCDCs used when achieving full-time dual-card dual-pass is reduced, saving space inside the mobile phone. In this way, while achieving full-time dual-card dual-pass, the space occupied by the radio frequency front-end circuit in the electronic device is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of an optional radio frequency front-end circuit provided in an embodiment of the present application;

[0020] Figure 2A schematic diagram of an optional electronic device provided in an embodiment of the present application Figure 1 ;

[0021] Figure 3 A flowchart of an optional control method provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the structure of an optional radio frequency front-end circuit example 1 provided in an embodiment of the present application;

[0023] Figure 5 A schematic diagram of the structure of a second example of an optional radio frequency front-end circuit provided in an embodiment of the present application;

[0024] Figure 6 A schematic diagram of the structure of an optional control device provided in an embodiment of the present application;

[0025] Figure 7 A schematic diagram of an optional electronic device provided in an embodiment of the present application Figure 2 . DETAILED DESCRIPTION

[0026] 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.

[0027] In order to solve the technical problem that the RF front-end circuit for realizing full-time dual-SIM dual-pass occupies a large internal space of an electronic device, an embodiment of the present application provides a RF front-end circuit, which is arranged in an electronic device. The electronic device supports two SIM cards, and the two SIM cards use a first frequency band and a second frequency band for data communication. Figure 1 A schematic diagram of the structure of an optional radio frequency front-end circuit provided in an embodiment of the present application, such as Figure 1 As shown, the RF front-end circuit 100 includes: a power amplifier 11 of a first frequency band; a voltage output end of a battery 101 of an electronic device is connected to a power supply end of the power amplifier 11 of the first frequency band; wherein,

[0028] The battery 101 is used to supply power to the power amplifier 11 of the first frequency band, so that the two SIM cards can achieve full-time dual-card dual-communication.

[0029] In order to realize full-time dual-card dual-pass, it is necessary to set a DCDC for the PA on the transmission link corresponding to each SIM card, which results in a large space occupied by the RF front-end circuit. In order to reduce the space occupied by the RF front-end circuit while realizing full-time dual-card dual-pass, in an embodiment of the present application, since the two SIM cards use the first frequency band and the second frequency band for data communication, the power amplifier of the transmission link using the first frequency band is recorded as the power amplifier 11 of the first frequency band, and the power supply end of the power amplifier 11 of the first frequency band is connected to the voltage output end of the battery, and the voltage output end of the battery 101 is usually recorded as VPH.

[0030] That is to say, the voltage output end of the battery 101 is connected to the power supply end of the power amplifier 11 of the first frequency band, so that the battery powers the power amplifier 11 of the first frequency band. In this way, the power amplifier on at least one transmitting link can work normally without DCDC, thereby achieving full-time dual-card dual-pass while reducing the occupied space of the RF front-end circuit 100.

[0031] It should be noted that, for the power amplifier using the transmission link in the second frequency band, recorded as the power amplifier of the second frequency band, the power supply end of the power amplifier of the second frequency band can be connected to the voltage output end of the battery, and can also be connected to the output end of the DCDC, that is, it can be powered by a battery or by DCDC. Here, the embodiment of the present application does not make specific limitations on this.

[0032] The first frequency band may be a plurality of frequency bands, and the second frequency band may be a plurality of frequency bands, and the embodiment of the present application does not specifically limit this. For example, the first frequency band is a high frequency (High Band, HB) frequency band, such as the n41 frequency band, and the second frequency band is an ultra high frequency (Ultra High Band, UHB) frequency band, such as the n78 frequency band. The first frequency band is an HB frequency band, and the second frequency band is a low frequency (Low Band, LB) / middle frequency (Middle Band, MB) frequency band. The first frequency band is a UHB frequency band, and the second frequency band is a LB / MB frequency band.

[0033] For the power amplifier of the second frequency band, in an optional embodiment, the voltage output end of the battery is connected to the input end of the DCDC of the electronic device, and the output end of the DCDC is connected to the power supply end of the power amplifier of the second frequency band; wherein,

[0034] DCDC is used to power the power amplifier of the second frequency band to achieve full-time dual-card dual-pass.

[0035] It can be understood that the power supply end of the power amplifier of the second frequency band is connected to the output end of the DCDC, and the input end of the DCDC is connected to the voltage output end of the battery, so that the battery powers the power amplifier of the second frequency band through the DCDC, and the battery powers the power amplifier of the first frequency band, so that the electronic device can achieve full-time dual-card dual-pass.

[0036] The frequency of the first frequency band is greater than the frequency of the second frequency band. That is to say, the power supply end of the power amplifier of the higher frequency band is connected to the voltage output end of the battery so that the battery can directly power it, and the power supply end of the power amplifier of the lower frequency band is connected to the output end of the DCDC so that the battery can power it through the DCDC.

[0037] For example, the first frequency band is the n41 band or the n78 band, and the second frequency band is the LB / MB band. Since the LB / MB band uses frequency division duplexing (FDD) mode for transmission and reception, the current is relatively large, so using DCDC power supply can reduce power consumption. The n41 band or the n78 band has relatively small current, and using the voltage output end of the battery to directly power supply can reduce the number of DCDCs.

[0038] In this way, the power amplifier of one frequency band is directly powered by the voltage output end of the battery, and the power amplifier of another frequency band is powered by DCDC, thereby reducing the internal space of the electronic device and reducing the power consumption of the RF front-end circuit as much as possible.

[0039] For the power amplifier of the third frequency band in the RF front-end circuit, in an optional embodiment, two SIM cards use two frequency bands of the first frequency band, the second frequency band and the third frequency band for data communication, and the voltage output end of the battery is connected to the power supply end of the power amplifier of the third frequency band; wherein,

[0040] The battery is used to power the power amplifier of the third frequency band to achieve full-time dual-card dual-pass.

[0041] It can be understood that if two SIM cards can choose to use two of the first frequency band, the second frequency band and the third frequency band for data communication, the two SIM cards can use the first frequency band and the second frequency band for data communication, and can also use the first frequency band and the third frequency band for data communication, and can also use the second frequency band and the third frequency band for data communication. Here, the embodiment of the present application does not make specific limitations on this.

[0042] In addition to the fact that the power amplifier in the first frequency band is powered by a battery and the power amplifier in the second frequency band is powered by DCDC, here, the voltage output end of the battery is connected to the power amplifier in the third frequency band. In this way, the battery is used to power the power amplifier in the third frequency band, and data communication can be performed using two of the first frequency band, the second frequency band and the third frequency band to achieve full-time dual-card dual-pass.

[0043] The frequency of the third frequency band is greater than the frequency of the second frequency band. That is to say, the power supply end of the power amplifier of the higher frequency band is connected to the voltage output end of the battery so that the battery can directly power it, and the power supply end of the power amplifier of the lower frequency band is connected to the output end of the DCDC so that the battery can power it through the DCDC.

[0044] In this way, the battery is used to power the power amplifier of the first frequency band and the power amplifier of the third frequency band, and the DCDC is used to power the power amplifier of the second frequency band, thereby reducing the number of DCDCs in the RF front-end circuit and reducing the internal space occupied by the RF front-end circuit in the electronic device.

[0045] In addition to the above-mentioned lower frequency band using DCDC to power its power amplifier and the higher two frequency bands using batteries to power their power amplifiers, in an optional embodiment, the voltage output end of the battery is connected to the power amplifier of the second frequency band; wherein,

[0046] The battery is used to power the power amplifier of the second frequency band to achieve full-time dual-card dual-pass.

[0047] It can be understood that the power supply end of the power amplifier of the second frequency band is connected to the voltage output end of the battery, so that the battery powers the power amplifier of the second frequency band. At the same time, the battery powers the power amplifier of the first frequency band, so that the electronic device can achieve full-time dual-card dual-pass.

[0048] In this way, the power amplifiers of both frequency bands are directly powered by the voltage output end of the battery, further reducing the space occupied by the RF front-end circuit inside the electronic device.

[0049] For the power amplifier of the third frequency band in the RF front-end circuit, in an optional embodiment, two SIM cards use two frequency bands of the first frequency band, the second frequency band and the third frequency band for data communication, and the voltage output end of the battery is connected to the power supply end of the power amplifier of the third frequency band; wherein,

[0050] The battery is used to power the power amplifier of the third frequency band to achieve full-time dual-card dual-pass.

[0051] It can be understood that if two SIM cards can choose to use two of the first frequency band, the second frequency band and the third frequency band for data communication, the two SIM cards can use the first frequency band and the second frequency band for data communication, and can also use the first frequency band and the third frequency band for data communication, and can also use the second frequency band and the third frequency band for data communication. Here, the embodiment of the present application does not make specific limitations on this.

[0052] In addition to the fact that the power amplifier in the first frequency band is powered by a battery and the power amplifier in the second frequency band is also powered by a battery, here, the voltage output end of the battery is also connected to the power amplifier in the third frequency band. In this way, the battery is used to power the power amplifier in the third frequency band, and data communication can be carried out using two of the first frequency band, the second frequency band and the third frequency band to realize full-time dual-card dual-pass.

[0053] In this way, the power amplifier of the first frequency band, the power amplifier of the second frequency band and the power amplifier of the third frequency band are powered by the battery, which further reduces the number of DCDCs in the RF front-end circuit and reduces the internal space occupied by the RF front-end circuit in the electronic device.

[0054] In addition, in order to reduce power consumption while reducing the internal space occupied by the RF front-end circuit of the electronic device, in an optional embodiment, the voltage output end of the battery is connected to the input end of the buck converter (BUCK) of the electronic device, and the output end of the BUCK is connected to the power supply end of the power amplifier of the first frequency band.

[0055] It can be understood that in addition to setting a BUCK between the voltage output end of the above-mentioned battery and the power supply end of the power amplifier of the first frequency band, for the structure in which the power amplifier of the second frequency band and the power amplifier of the third frequency band are powered by a battery, a BUCK is set between the voltage output end of the battery and the power supply end of the power amplifier for voltage reduction. Compared with DCDC, it occupies less space and can further reduce the occupied space of the RF front-end circuit.

[0056] In this way, by setting a BUCK between the voltage output end of the battery and the power supply end of the power amplifier of the first frequency band, the output voltage of the battery can be reduced to reduce the power consumption of the RF front-end circuit. At the same time, the BUCK occupies a small space, which can reduce the space occupied by the RF front-end circuit.

[0057] In view of the situation that the two SIM cards use two of the first frequency band, the second frequency band and the third frequency band for data communication, in an optional embodiment, the voltage output end of the battery is connected to the first input end of the first switch of the electronic device, the output end of the DCDC is connected to the second input end of the first switch, the output end of the first switch is connected to the power supply end of the power amplifier of the first frequency band, the voltage output end of the battery is connected to the first input end of the second switch of the electronic device, the output end of the DCDC is connected to the second input end of the second switch, and the output end of the second switch is connected to the power supply end of the power amplifier of the third frequency band; wherein,

[0058] When the control end of the first switch is connected to the first input end of the first switch and the second switch is disconnected, the battery is used to power the power amplifier of the first frequency band, and the DCDC is used to power the power amplifier of the second frequency band, so that the two SIM cards use the first frequency band and the second frequency band to achieve full-time dual-card dual-communication;

[0059] In a case where the control end of the first switch is connected to the second input end of the first switch and the control end of the second switch is connected to the first input end of the second switch, the DCDC is used to power the power amplifier of the first frequency band, and the battery is used to power the power amplifier of the third frequency band, so that the two SIM cards use the first frequency band and the third frequency band to achieve full-time dual-card dual-communication;

[0060] When the control end of the first switch is connected to the first input end of the first switch and the control end of the second switch is connected to the second input end of the second switch, the battery is used to power the power amplifier of the first frequency band, and the DCDC is used to power the power amplifier of the third frequency band, so that the two SIM cards use the first frequency band and the third frequency band to realize full-time dual-card dual-channel

[0061] When the first switch is disconnected and the control end of the second switch is connected to the first input end of the second switch, the DCDC is used to power the power amplifier of the second frequency band, and the battery is used to power the power amplifier of the third frequency band, so that the two SIM cards use the second frequency band and the third frequency band to achieve full-time dual-card dual-channel.

[0062] It can be understood that both the battery and the DCDC can power the power amplifier of the first frequency band. Here, the first input end and the second input end of the first switch can be connected to the voltage output end of the battery and the output end of the DCDC respectively, the output end of the first switch is connected to the power supply end of the power amplifier of the first frequency band, and the control end of the first switch is connected to the processor of the electronic device so that the processor can control the first switch.

[0063] Similarly, both the battery and the DCDC can power the power amplifier of the third frequency band. Here, the first input end and the second input end of the second switch can be connected to the voltage output end of the battery and the output end of the DCDC respectively, the output end of the second switch is connected to the power supply end of the power amplifier of the third frequency band, and the control end of the second switch is connected to the processor of the electronic device so that the processor can control the second switch.

[0064] Based on this, the output end of the above-mentioned DCDC is connected to the power supply end of the power amplifier of the second frequency band. Here, the first switch and the second switch can be controlled by the frequency band used by the SIM card to achieve full-time dual-card dual-channel.

[0065] For the situation that two SIM cards use the first frequency band and the second frequency band to realize full-time dual-card dual-pass, the first frequency band can be directly powered by a battery or by a DCDC. Since the DCDC can only power a power amplifier of one frequency band, the control end of the first switch is connected to the first input end of the first switch, so that the battery powers the power amplifier of the first frequency band, the second switch is disconnected, so that the power amplifier of the third frequency band does not work, and the DCDC powers the power amplifier of the second frequency band. In this way, the two SIM cards use the first frequency band and the second frequency band to realize full-time dual-card dual-pass.

[0066] In the case where two SIM cards use the first frequency band and the third frequency band to realize full-time dual-card dual-communication, the first frequency band can be powered directly by a battery or by DCDC, and the third frequency band can be powered directly by a battery or by DCDC. Since DCDC can only power a power amplifier of one frequency band, either the power amplifier of the first frequency band is powered by DCDC or the power amplifier of the third frequency band is powered by DCDC. In other words, either the control end of the first switch is connected to the second input end of the first switch and the control end of the second switch is connected to the first input end of the second switch, or the control end of the second switch is connected to the second input end of the second switch and the control end of the first switch is connected to the first input end of the first switch. In this way, the two SIM cards use the first frequency band and the third frequency band to realize full-time dual-card dual-communication.

[0067] For the situation that two SIM cards use the second frequency band and the third frequency band to realize full-time dual-card dual-pass, the third frequency band can be directly powered by a battery or by DCDC. Since DCDC can only power a power amplifier of one frequency band, the control end of the second switch is connected to the first input end of the second switch, so that the battery powers the power amplifier of the third frequency band, the first switch is disconnected, so that the power amplifier of the first frequency band does not work, and DCDC powers the power amplifier of the second frequency band. In this way, the two SIM cards use the second frequency band and the third frequency band to realize full-time dual-card dual-pass.

[0068] In this way, full-time dual-SIM dual-pass is achieved by controlling the first switch and the second switch, and the power consumption of the RF front-end circuit can be reduced by controlling the first switch and the second switch while achieving full-time dual-SIM dual-pass.

[0069] An embodiment of the present application provides an electronic device, Figure 2 A schematic diagram of an optional electronic device provided in an embodiment of the present application Figure 1 ,like Figure 2 As shown, the electronic device 200 includes the RF front-end circuit 100 as described in one or more of the above embodiments.

[0070] The embodiment of the present application provides a control method, which is arranged in an electronic device including the radio frequency front-end circuit including the first switch and the second switch as described above, Figure 3 A flow chart of an optional control method is provided for the present application example, such as Figure 3 As shown, the control method may include:

[0071] S301: Determine the current frequency band used by the electronic device;

[0072] S302: Control the first switch and the second switch according to the currently used frequency band to achieve full-time dual-card dual-communication or single-card communication.

[0073] For the above-mentioned electronic device, the voltage output end of the battery is connected to the power supply end of the power amplifier of the first frequency band, the battery is used to power the power amplifier of the first frequency band, the voltage output end of the battery is connected to the first input end of the first switch of the electronic device, the output end of the DCDC is connected to the second input end of the first switch, the output end of the first switch is connected to the power supply end of the power amplifier of the first frequency band, the voltage output end of the battery is connected to the first input end of the second switch of the electronic device, the output end of the DCDC is connected to the second input end of the second switch, and the output end of the second switch is connected to the power supply end of the power amplifier of the third frequency band.

[0074] Based on the above structure, in order to further reduce power consumption, in the embodiment of the present application, in S201, the electronic device first obtains the currently used frequency band of the electronic device. It should be noted that the currently used frequency band can be one frequency band, for example, in the case of a single SIM card, or two frequency bands, for example, in the case of dual SIM cards. Here, the embodiment of the present application does not specifically limit this.

[0075] That is to say, the currently used frequency band may be one or two of the first frequency band, the second frequency band and the third frequency band. For example, the first frequency band may be the n40 frequency band or the n41 frequency band, the second frequency band may be the LB / MB frequency band, and the third frequency band may be the n78 frequency band.

[0076] After the electronic device determines the currently used frequency band in S201, the first switch and the second switch are controlled according to the currently used frequency band in S202, so that the electronic device can achieve full-time dual-card dual-communication or single-card communication.

[0077] When the currently used frequency band is one of the first, second and third frequency bands, the first switch and the second switch are controlled so that the electronic device can achieve single-card communication; when the currently used frequency band is two of the first, second and third frequency bands, the first switch and the second switch are controlled so that the electronic device can achieve full-time dual-card dual-pass.

[0078] Further, in order to achieve full-time dual-card dual-pass or single-card communication, in an optional embodiment, S302 may include:

[0079] When the currently used frequency bands are the first frequency band and the second frequency band, the control end of the first switch is controlled to be connected to the first input end of the first switch, and the second switch is controlled to be disconnected, so that the battery supplies power to the power amplifier of the first frequency band, and the DCDC supplies power to the power amplifier of the second frequency band, so as to realize full-time dual-card dual-channel;

[0080] When the currently used frequency band is the first frequency band, the control end of the first switch is controlled to be connected to the second input end of the first switch, and the second switch is controlled to be disconnected, so that the DCDC supplies power to the power amplifier of the first frequency band to realize single-card communication;

[0081] When the currently used frequency band is the second frequency band, the first switch is controlled to be disconnected, and the second switch is controlled to be disconnected, so that the DCDC supplies power to the power amplifier of the second frequency band to realize single-card communication.

[0082] It can be understood that, for the case where two SIM cards use the first frequency band and the second frequency band for data communication, in order to reduce power consumption, here, the control end of the first switch is connected to the first input end of the first switch, so that the battery powers the power amplifier of the first frequency band, and the controlled second switch is disconnected, so that the power amplifier of the third frequency band does not work. At this time, DCDC powers the power amplifier of the second frequency band. In this way, the two SIM cards use the first frequency band and the second frequency band to achieve full-time dual-card dual-pass while reducing power consumption.

[0083] For a SIM card using the first frequency band for data communication, in order to reduce power consumption, here, the second switch is controlled to be disconnected, so that the power amplifier of the third frequency band does not work, the control end of the first switch is controlled to be connected to the second input end of the first switch, and the power amplifier of the first frequency band is powered by DCDC. In this way, a SIM card uses the first frequency band to realize single-card communication while reducing power consumption.

[0084] For a SIM card using the second frequency band for data communication, in order to reduce power consumption, here, the first switch and the second switch are controlled to be disconnected, so that the power amplifier of the first frequency band and the power amplifier of the third frequency band do not work, and the power amplifier of the second frequency band is powered by DCDC. In this way, a SIM card uses the second frequency band to realize single-card communication while reducing power consumption.

[0085] In this way, when one or both of the first frequency band and the second frequency band are used, full-time dual-card dual-channel or single-card communication can be achieved while reducing the power consumption of the radio frequency front-end circuit.

[0086] In addition, further, in order to achieve full-time dual-card dual-pass or single-card communication, in an optional embodiment, S302 may include:

[0087] When the currently used frequency bands are the second frequency band and the third frequency band, the control end of the second switch is controlled to be connected to the first input end of the second switch, and the first switch is controlled to be disconnected, so that the battery supplies power to the power amplifier of the third frequency band, and the DCDC supplies power to the power amplifier of the second frequency band, so as to realize full-time dual-card dual-pass;

[0088] When the currently used frequency band is the third frequency band, the control end of the second switch is controlled to be connected to the second input end of the second switch, and the first switch is controlled to be disconnected, so that the DCDC supplies power to the power amplifier of the third frequency band to realize single-card communication;

[0089] When the currently used frequency band is the second frequency band, the first switch is controlled to be disconnected, and the second switch is controlled to be disconnected, so that the DCDC supplies power to the power amplifier of the second frequency band to realize single-card communication.

[0090] It can be understood that, for the case where two SIM cards use the second frequency band and the third frequency band for data communication, in order to reduce power consumption, here, the control end of the second switch is connected to the first input end of the second switch, so that the battery powers the power amplifier of the third frequency band, and the controlled first switch is disconnected, so that the power amplifier of the first frequency band does not work. At this time, DCDC powers the power amplifier of the second frequency band. In this way, the two SIM cards use the second frequency band and the third frequency band to achieve full-time dual-card dual-pass while reducing power consumption.

[0091] For a SIM card using the third frequency band for data communication, in order to reduce power consumption, here, the first switch is controlled to be disconnected, so that the power amplifier of the first frequency band does not work, the control end of the second switch is controlled to be connected to the second input end of the second switch, and the power amplifier of the third frequency band is powered by DCDC. In this way, a SIM card uses the third frequency band to realize single-card communication while reducing power consumption.

[0092] For a SIM card using the second frequency band for data communication, in order to reduce power consumption, here, the first switch and the second switch are controlled to be disconnected, so that the power amplifier of the first frequency band and the power amplifier of the third frequency band do not work, and the power amplifier of the second frequency band is powered by DCDC. In this way, a SIM card uses the second frequency band to realize single-card communication while reducing power consumption.

[0093] In this way, when one or both of the second frequency band and the third frequency band are used, full-time dual-card dual-channel or single-card communication can be achieved while reducing the power consumption of the RF front-end circuit.

[0094] Further, in order to achieve full-time dual-card dual-pass or single-card communication, in an optional embodiment, S302 may include:

[0095] When the currently used frequency bands are the first frequency band and the third frequency band, the control end of the first switch is controlled to be connected to the first input end of the first switch, and the control end of the second switch is controlled to be connected to the second input end of the second switch, so that the battery supplies power to the power amplifier of the first frequency band, and the DCDC supplies power to the power amplifier of the third frequency band, so as to realize full-time dual-card dual-pass;

[0096] When the currently used frequency bands are the first frequency band and the third frequency band, the control end of the first switch is controlled to be connected to the second input end of the first switch, and the control end of the second switch is controlled to be connected to the first input end of the second switch, so that the DCDC supplies power to the power amplifier of the first frequency band, and the battery supplies power to the power amplifier of the third frequency band, so as to realize full-time dual-card dual-channel;

[0097] When the currently used frequency band is the first frequency band, the control end of the first switch is controlled to be connected to the second input end of the first switch, and the second switch is controlled to be disconnected, so that the DCDC supplies power to the power amplifier of the first frequency band to realize single-card communication;

[0098] When the currently used frequency band is the third frequency band, the first switch is controlled to be disconnected, and the control end of the second switch is controlled to be connected to the second input end of the second switch, so that the DCDC supplies power to the power amplifier of the third frequency band to realize single-card communication.

[0099] It can be understood that for the case where two SIM cards use the first frequency band and the third frequency band for data communication, in order to reduce power consumption, here, the control end of the first switch can be controlled to connect to the first input end of the first switch, so that the battery supplies power to the power amplifier of the first frequency band, and the control end of the second switch can be controlled to connect to the second input end of the second switch, so that the DCDC supplies power to the power amplifier of the third frequency band. Here, the control end of the first switch can also be controlled to connect to the second input end of the first switch, so that the DCDC supplies power to the power amplifier of the first frequency band, and the control end of the second switch can be controlled to connect to the first input end of the second switch, so that the battery supplies power to the power amplifier of the third frequency band. In this way, the two SIM cards use the first frequency band and the third frequency band to achieve full-time dual-card dual-pass while reducing power consumption.

[0100] For a SIM card using the first frequency band for data communication, in order to reduce power consumption, here, the second switch is controlled to be disconnected, so that the power amplifier of the third frequency band does not work, the control end of the first switch is controlled to be connected to the second input end of the first switch, and the power amplifier of the first frequency band is powered by DCDC. In this way, a SIM card uses the first frequency band to realize single-card communication while reducing power consumption.

[0101] For a SIM card using the third frequency band for data communication, in order to reduce power consumption, here, the first switch is controlled to be disconnected, so that the power amplifier of the first frequency band does not work, the control end of the second switch is controlled to be connected to the second input end of the second switch, and the power amplifier of the third frequency band is powered by DCDC. In this way, a SIM card uses the third frequency band to realize single-card communication while reducing power consumption.

[0102] In this way, when one or both of the first frequency band and the third frequency band are used, full-time dual-card dual-channel or single-card communication can be achieved while reducing the power consumption of the RF front-end circuit.

[0103] The following examples are used to describe the RF front-end circuit and control method described in one or more of the above embodiments.

[0104] Figure 4 A schematic diagram of the structure of an example 1 of an optional RF front-end circuit provided in an embodiment of the present application, such as Figure 4As shown, the RF front-end circuit 400 includes: VPH41, DCDC42, LB integrated power amplifier, switch and filter module (Power Amplifier module integrated Duplexer, PAMiD) 43, MHB PAMiD44 and 78PAMiD45; wherein VPH41 is respectively connected to the input end of DCDC42, the power end of the Global System for Mobile Communications (GSM) PA, the power end of the HB PA, the power end of the HB PA and the power end of the 78PA, and the output end of DCDC is respectively connected to the power end of the LB PA and the power end of the MB PA. Wherein, 78 here refers to the n78 frequency band.

[0105] That is to say, VPH supplies power to GSM PA, HB PA and 78PA (such as HB can be nN41); DCDC supplies power to LB PA and MBPA; in this way, all mainstream FC-DCDC of n41++n78, n41++LB / MB, n78++LB / MB can be realized, and the cost is extremely advantageous.

[0106] It can be seen that the power supply of 3 / 4 / 5G low-frequency LB PA and medium-frequency MB PA is the same as before, using the same DCDC power supply. The high-frequency HB PA and UHB PA of 4 / 5G, mainly Band40, Band41, and Band78, can be powered by VPH.

[0107] In this way, since the power supply ends of the HB PA, the UHB PA and the LB PA / MB PA are independent of each other, they can support simultaneous dual transmission. For example, the supported DSDA frequency bands may include: n41 / n40++n78; n41++LB / MB, n78++LB / MB, all of these mainstream FC-DSDA can be supported.

[0108] In this example, most mainstream dual-SIM DSDAs are implemented at the cost of using only standalone (SA) networking. The cost advantage is very significant and the user's dual-SIM experience is greatly enhanced.

[0109] exist Figure 4 On the basis of Figure 5 A schematic diagram of the structure of an optional RF front-end circuit example 2 provided in an embodiment of the present application, such as Figure 5As shown, the RF front-end circuit 400 also includes: a power supply voltage switch (Volt Current Condenser Switch, VCC SWITCH) 51 and a VCC SWITCH 52, wherein the first input end of the VCC SWITCH 51 is connected to the VPH 41, the second input end of the VCC SWITCH 51 is connected to the output end of the DCDC 42, the output end of the VCC SWITCH 51 is connected to the power end of the HBPA, the first input end of the VCC SWITCH 52 is connected to the VPH 41, the second input end of the VCC SWITCH 52 is connected to the output end of the DCDC 42, and the output end of the VCC SWITCH 52 is connected to the power end of the 78PA.

[0110] In this example, power switches are added to the power supply ends of the HB PA and the 78PA respectively; when the electronic device uses a single frequency band (Single Band), the DCDC supplies power to the LB PA / MB PA / HB PA / 78PA to ensure the performance and power consumption of the RF front-end circuit 400.

[0111] In FC-DSDA, n41++n78, n41++LB / MB, n78++LB / MB, you can choose VPH to power n41 or n78, and DCDC to power the other band.

[0112] This solution implements all mainstream FC-DSDA while taking into account performance and power consumption.

[0113] As can be seen, this example uses an innovative power supply solution to make the power supplies of HB PA (n41), UHB PA (n78), and LB / MB PA independent of each other, so that the two PAs can transmit independently. All mainstream FC-DSDAs are implemented with only the hardware cost of the SA Only version, which has significant cost advantages and greatly improves user experience.

[0114] All mainstream FC-DSDA can be implemented with the hardware cost of the SA Only version, which has significant cost advantages and greatly improves user experience.

[0115] An embodiment of the present application provides a radio frequency front-end circuit, an electronic device supports two SIM cards, the two SIM cards use a first frequency band and a second frequency band for data communication, the radio frequency front-end circuit includes: a power amplifier of the first frequency band, a voltage output end of a battery of the electronic device is connected to a power supply end of the power amplifier of the first frequency band, and the battery is used to power the power amplifier of the first frequency band, so that the two SIM cards can achieve full-time dual-card dual-pass; that is, in the embodiment of the present application, the power supply end of the PA of the transmission link where the frequency band used by at least one SIM card is located is connected to the voltage output end of the battery, thereby reducing the number of DCDCs used when achieving full-time dual-card dual-pass, saving space inside the mobile phone, so that while achieving full-time dual-card dual-pass, the space occupied by the radio frequency front-end circuit in the electronic device is reduced.

[0116] Based on the same inventive concept as the above embodiments, an embodiment of the present application provides a control device, which is arranged in the electronic device described in one or more of the above embodiments. Figure 6 A schematic diagram of the structure of an optional control device provided in an embodiment of the present application is shown in FIG. Figure 6 As shown, the control device includes: a determination module 61 and a control module 62; wherein,

[0117] A determination module 61, used to determine a current frequency band used by the electronic device;

[0118] The control module 62 is used to control the first switch and the second switch according to the currently used frequency band to achieve dual-card dual-communication or single-card communication.

[0119] In an optional embodiment, the control module 62 is specifically configured to:

[0120] When the currently used frequency bands are the first frequency band and the second frequency band, the control end of the first switch is controlled to be connected to the first input end of the first switch, and the second switch is controlled to be disconnected, so that the battery supplies power to the power amplifier of the first frequency band, and the DCDC supplies power to the power amplifier of the second frequency band, so as to realize full-time dual-card dual-channel;

[0121] When the currently used frequency band is the first frequency band, the control end of the first switch is controlled to be connected to the second input end of the first switch, and the second switch is controlled to be disconnected, so that the DCDC supplies power to the power amplifier of the first frequency band to realize single-card communication;

[0122] When the currently used frequency band is the second frequency band, the first switch is controlled to be disconnected, the second switch is controlled to be disconnected, and the third switch is controlled to be disconnected, so that the DCDC supplies power to the power amplifier of the second frequency band to realize single-card communication.

[0123] In an optional embodiment, the control module 62 is specifically configured to:

[0124] When the currently used frequency bands are the second frequency band and the third frequency band, the control end of the second switch is controlled to be connected to the first input end of the second switch, and the first switch is controlled to be disconnected, so that the battery supplies power to the power amplifier of the third frequency band, and the DCDC supplies power to the power amplifier of the second frequency band, so as to realize full-time dual-card dual-pass;

[0125] When the currently used frequency band is the third frequency band, the control end of the second switch is controlled to be connected to the second input end of the second switch, and the first switch is controlled to be disconnected, so that the DCDC supplies power to the power amplifier of the third frequency band to realize single-card communication;

[0126] When the currently used frequency band is the second frequency band, the first switch is controlled to be disconnected, and the second switch is controlled to be disconnected, so that the DCDC supplies power to the power amplifier of the second frequency band to realize single-card communication.

[0127] In an optional embodiment, the control module 62 is specifically configured to:

[0128] When the currently used frequency bands are the first frequency band and the third frequency band, the control end of the first switch is controlled to be connected to the first input end of the first switch, and the control end of the second switch is controlled to be connected to the second input end of the second switch, so that the battery supplies power to the power amplifier of the first frequency band, and the DCDC supplies power to the power amplifier of the third frequency band, so as to realize full-time dual-card dual-pass;

[0129] When the currently used frequency bands are the first frequency band and the third frequency band, the control end of the first switch is controlled to be connected to the second input end of the first switch, and the control end of the second switch is controlled to be connected to the first input end of the second switch, so that the DCDC supplies power to the power amplifier of the first frequency band, and the battery supplies power to the power amplifier of the third frequency band, so as to realize full-time dual-card dual-channel;

[0130] When the currently used frequency band is the first frequency band, the control end of the first switch is controlled to be connected to the second input end of the first switch, and the second switch is controlled to be disconnected, so that the DCDC supplies power to the power amplifier of the first frequency band to realize single-card communication;

[0131] When the currently used frequency band is the third frequency band, the first switch is controlled to be disconnected, and the control end of the second switch is controlled to be connected to the second input end of the second switch, so that the DCDC supplies power to the power amplifier of the third frequency band to realize single-card communication.

[0132] In practical applications, the above-mentioned determination module 61 and control module 62 can be implemented by a processor located on the control device, specifically a central processing unit (CPU), a microprocessor (MPU), a digital signal processor (DSP) or a field programmable gate array (FPGA).

[0133] Figure 7 A schematic diagram of an optional electronic device provided in an embodiment of the present application Figure 2 ,like Figure 7 As shown, an embodiment of the present application provides an electronic device 700, including:

[0134] A processor 71 and a storage medium 72 storing instructions executable by the processor; the storage medium 72 relies on the processor 71 to perform operations through a communication bus 73, and when the instructions are executed by the processor, the control method executed by the processor side in one or more of the above embodiments is executed.

[0135] It should be noted that in actual application, the various components in the computer device are coupled together through the communication bus 73. It is understandable that the communication bus 73 is used to realize the connection and communication between these components. In addition to the data bus, the communication bus 73 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, Figure 7 Various buses are labeled as communication buses 73.

[0136] 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 control method described in one or more of the above embodiments.

[0137] 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.

[0138] 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.

[0139] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented 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 generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0140] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0141] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0142] 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 can support two SIM cards, the two SIM cards use a first frequency band and a second frequency band for data communication, the RF front-end circuit includes: a power amplifier of the first frequency band; the voltage output end of the battery of the electronic device is connected to the power supply end of the power amplifier of the first frequency band; wherein, The battery is used to supply power to the power amplifier of the first frequency band, so that the two SIM cards can achieve full-time dual-card dual-communication.

2. The circuit according to claim 1, characterized in that The voltage output end of the battery is connected to the input end of the DCDC of the electronic device, and the output end of the DCDC is connected to the power supply end of the power amplifier of the second frequency band; wherein, The DCDC is used to power the power amplifier of the second frequency band to achieve full-time dual-card dual-channel; The frequency of the first frequency band is greater than the frequency of the second frequency band.

3. The circuit according to claim 2, characterized in that The two SIM cards use two frequency bands among the first frequency band, the second frequency band and the third frequency band for data communication, and the voltage output end of the battery is connected to the power supply end of the power amplifier of the third frequency band; wherein, The battery is used to supply power to the power amplifier of the third frequency band to achieve full-time dual-card dual-channel; The frequency of the third frequency band is greater than the frequency of the second frequency band.

4. The circuit according to claim 1, characterized in that The voltage output end of the battery is connected to the power amplifier of the second frequency band; wherein, The battery is used to power the power amplifier of the second frequency band to achieve full-time dual-card dual-channel.

5. The circuit according to claim 4, characterized in that The two SIM cards use two frequency bands among the first frequency band, the second frequency band and the third frequency band for data communication, and the voltage output end of the battery is connected to the power supply end of the power amplifier of the third frequency band; wherein, The battery is used to power the power amplifier of the third frequency band to achieve full-time dual-card dual-channel.

6. The circuit according to claim 1, characterized in that The voltage output end of the battery is connected to the input end of the BUCK of the electronic device, and the output end of the BUCK is connected to the power supply end of the power amplifier of the first frequency band.

7. The circuit according to claim 3, characterized in that The voltage output end of the battery is connected to the first input end of the first switch of the electronic device, the output end of the DCDC is connected to the second input end of the first switch, the output end of the first switch is connected to the power supply end of the power amplifier of the first frequency band, the voltage output end of the battery is connected to the first input end of the second switch of the electronic device, the output end of the DCDC is connected to the second input end of the second switch, and the output end of the second switch is connected to the power supply end of the power amplifier of the third frequency band; wherein, When the control end of the first switch is connected to the first input end of the first switch and the second switch is disconnected, the battery is used to power the power amplifier of the first frequency band, and the DCDC is used to power the power amplifier of the second frequency band, so that the two SIM cards use the first frequency band and the second frequency band to achieve full-time dual-card dual-pass; In a case where the control end of the first switch is connected to the second input end of the first switch, and the control end of the second switch is connected to the first input end of the second switch, the DCDC is used to power the power amplifier of the first frequency band, and the battery is used to power the power amplifier of the third frequency band, so that the two SIM cards use the first frequency band and the third frequency band to achieve full-time dual-card dual-pass; In a case where the control end of the first switch is connected to the first input end of the first switch, and the control end of the second switch is connected to the second input end of the second switch, the battery is used to power the power amplifier of the first frequency band, and the DCDC is used to power the power amplifier of the third frequency band, so that the two SIM cards use the first frequency band and the third frequency band to achieve full-time dual-card dual-channel When the first switch is disconnected and the control end of the second switch is connected to the first input end of the second switch, the DCDC is used to power the power amplifier of the second frequency band, and the battery is used to power the power amplifier of the third frequency band, so that the two SIM cards use the second frequency band and the third frequency band to achieve full-time dual-card dual-pass.

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

9. A control method, characterized in that: Applicable to the electronic device as claimed in claim 7, comprising: Determining a current frequency band used by the electronic device; According to the currently used frequency band, the first switch and the second switch are controlled to achieve full-time dual-card dual-communication or single-card communication.

10. The method according to claim 9, characterized in that The controlling the first switch and the second switch according to the currently used frequency band to achieve full-time dual-card dual-pass or single-card communication includes: When the currently used frequency bands are the first frequency band and the second frequency band, the control end of the first switch is controlled to be connected to the first input end of the first switch, and the second switch is controlled to be disconnected, so that the battery supplies power to the power amplifier of the first frequency band, and the DCDC supplies power to the power amplifier of the second frequency band, so as to realize full-time dual-card dual-pass; When the currently used frequency band is the first frequency band, controlling the control end of the first switch to be connected to the second input end of the first switch, and controlling the second switch to be disconnected, so that the DCDC supplies power to the power amplifier of the first frequency band to realize single-card communication; When the currently used frequency band is the second frequency band, the first switch is controlled to be disconnected, and the second switch is controlled to be disconnected, so that the DCDC supplies power to the power amplifier of the second frequency band to realize single-card communication.

11. The method according to claim 9, characterized in that The controlling the first switch and the second switch according to the currently used frequency band to achieve full-time dual-card dual-pass or single-card communication includes: When the currently used frequency bands are the second frequency band and the third frequency band, the control end of the second switch is controlled to be connected to the first input end of the second switch, and the first switch is controlled to be disconnected, so that the battery supplies power to the power amplifier of the third frequency band, and the DCDC supplies power to the power amplifier of the second frequency band, so as to realize full-time dual-card dual-pass; When the currently used frequency band is the third frequency band, controlling the control end of the second switch to be connected to the second input end of the second switch, and controlling the first switch to be disconnected, so that the DCDC supplies power to the power amplifier of the third frequency band, so as to realize single-card communication; When the currently used frequency band is the second frequency band, the first switch is controlled to be disconnected, and the second switch is controlled to be disconnected, so that the DCDC supplies power to the power amplifier of the second frequency band to realize single-card communication.

12. The method according to claim 9, characterized in that The controlling the first switch and the second switch according to the currently used frequency band to implement dual-card dual-pass or single-card communication includes: In a case where the currently used frequency bands are the first frequency band and the third frequency band, the control end of the first switch is controlled to be connected to the first input end of the first switch, and the control end of the second switch is controlled to be connected to the second input end of the second switch, so that the battery supplies power to the power amplifier of the first frequency band, and the DCDC supplies power to the power amplifier of the third frequency band, so as to realize full-time dual-card dual-pass; In a case where the currently used frequency bands are the first frequency band and the third frequency band, the control end of the first switch is controlled to be connected to the second input end of the first switch, and the control end of the second switch is controlled to be connected to the first input end of the second switch, so that the DCDC supplies power to the power amplifier of the first frequency band, and the battery supplies power to the power amplifier of the third frequency band, so as to realize full-time dual-card dual-pass; When the currently used frequency band is the first frequency band, controlling the control end of the first switch to be connected to the second input end of the first switch, and controlling the second switch to be disconnected, so that the DCDC supplies power to the power amplifier of the first frequency band to realize single-card communication; When the currently used frequency band is the third frequency band, the first switch is controlled to be disconnected, and the control end of the second switch is controlled to be connected to the second input end of the second switch, so that the DCDC supplies power to the power amplifier of the third frequency band to realize single-card communication.

13. A control device, characterized in that: The electronic device according to claim 7 comprises: A determination module, used to determine the current frequency band used by the electronic device; The control module is used to control the first switch and the second switch according to the currently used frequency band to achieve dual-card dual-channel or single-card communication.

14. 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 a communication bus, and when the instructions are executed by the processor, the control method described in any one of claims 9 to 12 is executed.

15. 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 control method described in any one of claims 9 to 12.

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