RF modules and electronic equipment

Abstract

The present application provides a radio frequency module and an electronic device, which are applied to the field of terminal technology. The radio frequency module includes: a first filter, a second filter, a first switch unit, a second switch unit and a first antenna unit; the first filter is used to filter the signal of the first frequency band; the second filter is used to filter the signal of the second frequency band; the first switch unit is used to connect the first end of the first switch unit with the third end of the first switch unit and the second end of the first switch unit with the third end of the first switch unit when the first frequency band and the second frequency band need to be used; the second switch unit is used to connect the first end of the second switch unit with the second end of the second switch unit when the second frequency band needs to be used when implementing the service. In this way, the reception and / or transmission of the signals of the first frequency band and the second frequency band are realized through the first antenna, which is conducive to improving the throughput rate of the signals of the frequency bands and reducing the impact on the implementation of the service.

Description

Technical Field

[0001] The present application relates to the field of terminal technology, and in particular to a radio frequency module and electronic equipment. Background Art

[0002] At present, there are some scenarios in which two frequency bands are required to work simultaneously when implementing the services of the terminal equipment. The services of the terminal equipment may be downloading data, making and receiving calls, playing videos, and running games. One scenario is the NSA (non stand alone) scenario, that is, the ENDC scenario of LTE+NR dual connection. The services in the terminal equipment can be implemented by the simultaneous operation of the LTE frequency band and the NR frequency band. Another scenario is the dual sim dual active (DSDA) scenario, where two subscriber identity modules (SIMs) work simultaneously. When implementing the same or different services, the terminal equipment can support the simultaneous operation of two frequency bands. In another scenario, in the uplink carrier aggregation (ULCA) scenario, two frequency bands may be required to work simultaneously.

[0003] However, in ENDC, DSDA or ULCA scenarios, when the two frequency bands work at the same time, they will affect each other, resulting in a decrease in throughput and affecting business data transmission. Summary of the invention

[0004] The embodiments of the present application provide a radio frequency module and an electronic device, which are applied to the field of terminal technology. In the embodiments of the present application, it is beneficial to improve the throughput rate of signals in the frequency band, thereby improving the data transmission of the service.

[0005] In a first aspect, the present application provides a radio frequency module, which includes a first filter, a second filter, a first switch unit, a second switch unit and a first antenna unit; the first filter is connected to the first end of the first switch unit, the second filter is connected to the second end of the first switch unit, the third end of the first switch unit is connected to the first antenna unit, the first end of the second switch unit is connected to the transceiver, and the second end of the second switch unit is connected to the second filter; the first filter is used to filter signals in a first frequency band, and the first frequency band is the frequency band used by the radio frequency module when transmitting signals in a frequency division duplex mode (frequency-division duple, FDD); the second filter is used to filter signals in a second frequency band, and the second frequency band is the frequency band used by the radio frequency module when transmitting signals in a time division duplex mode (time-division duplex mode duple, TDD) transmits signals; a first switch unit is used to connect the first end of the first switch unit with the third end of the first switch unit when the first frequency band is required to be used for processing the first service, so that the reception and / or transmission of the signal in the first frequency band is realized through the first filter and the first antenna unit; the first switch unit is also used to connect the second end of the first switch unit with the third end of the first switch unit when the second service is processed and the second frequency band is required to be used for processing the second service; the second switch unit is used to connect the first end of the second switch unit with the second end of the second switch unit, so that the reception and / or transmission of the signal in the first frequency band is realized through the first filter and the first antenna unit, and the reception and / or transmission of the signal in the second frequency band is realized through the second filter and the first antenna unit.

[0006] The first frequency band may be a B3 frequency band, a B1 frequency band, a B39 frequency band, and the like. The second frequency band may be an N40 or N41 frequency band, and the like. This application does not limit this. The first filter may be a duplexer or a quadplexer, and this application does not limit this. The first antenna unit may include one or more antennas, and this application does not limit this. In addition to connecting the first antenna unit, the first switch unit may also be connected to at least one antenna unit, and this application does not limit this. In addition to connecting the second filter, the second switch unit may also be connected to at least one filter. In this way, the second switch unit can connect different filters under different circumstances to realize the transmission of signals in different frequency bands, so that the RF module has a wider range of uses.

[0007] In some implementations, the RF module may also include two power amplifiers, which may be used to power amplify signals in the first frequency band and power amplify signals in the second frequency band, respectively. In this way, power amplification of the signal is conducive to transmitting the signal over a longer distance. In addition, the RF module may also include two low noise power amplifiers (LNA), which may be used to power amplify and suppress noise for received signals in the first frequency band, and power amplify and suppress noise for received signals in the second frequency band, respectively. In this way, the noise of the received signal can be suppressed, and the power of the signal other than the noise can be amplified, which is conducive to improving the signal-to-noise ratio of the received signal.

[0008] In some other implementations, the RF module may further include a switch unit, which may be connected to the first filter and may also be connected to at least one filter. In this way, the switch unit may connect different filters in different situations to achieve transmission of signals in different frequency bands, thereby making the RF module more widely usable.

[0009] In the RF module provided by the present application, the transmission of the signal of the first frequency band is realized by the first filter and the first antenna unit, and the transmission of the signal of the second frequency band is realized by the second filter and the first antenna unit, that is, when the signal of the first frequency band and the signal of the second frequency band are transmitted at the same time, they are both realized by the first antenna unit. In this way, in the sending time slot of the signal of the second frequency band, the signal of the first frequency band is sent by the first filter and the first antenna unit, the signal of the first frequency band is received by the first filter and the first antenna unit, and the signal of the second frequency band is sent by the second filter and the first antenna unit. In the receiving time slot of the signal of the second frequency band, the signal of the first frequency band is sent by the first filter and the first antenna unit, the signal of the first frequency band is received by the first filter and the first antenna unit, and the signal of the second frequency band is received by the second filter and the first antenna unit. In this way, when switching from the sending time slot of the signal of the second frequency band to the receiving time slot, or from the receiving time slot of the signal of the second frequency band to the sending time slot, the first switch unit is in the double-open mode, that is, the signal of the first frequency band and the signal of the second frequency band use the first antenna, and the probability of impedance change is small, which has little impact on the continuity of the gain and phase of the signal of the first frequency band, and thus has little impact on the throughput rate of the signal of the first frequency band, which is beneficial to reducing the impact on business implementation.

[0010] In one possible implementation, the RF module also includes a signal acquisition unit, which is connected to the input end of the signal separation unit, the first output end of the signal separation unit is connected to the first end of the third switch unit, the second output end of the signal separation unit is connected to the second end of the third switch unit, and the third end of the third switch unit is connected to the transceiver; the signal acquisition unit is used to collect the signal sent by the first antenna unit; the signal separation unit is used to separate the signal of the first frequency band and the signal of the second frequency band, the first output end of the signal separation unit is used to output the signal of the first frequency band, and the second output end of the signal separation unit is used to output the signal of the second frequency band; the third switch unit is used to connect the first output end of the signal separation unit to the transceiver when power detection of the signal of the first frequency band is required, and connect the second output end of the signal separation unit to the transceiver when power detection of the signal of the second frequency band is required.

[0011] When the signal of the first frequency band and the signal of the second frequency band are sent by the first antenna unit, if the signal of the first frequency band is detected, the signal acquisition unit can acquire the signal sent by the first antenna unit, the signal separation unit can separate the signal of the first frequency band from the signal of the second frequency band, and the third switch unit connects the first output end of the signal separation unit with the transceiver to facilitate the detection of the signal of the first frequency band. If the signal of the second frequency band is detected, the signal acquisition unit can acquire the signal sent by the first antenna unit, the signal separation unit can separate the signal of the first frequency band from the signal of the second frequency band, and the third switch unit connects the second output end of the signal separation unit with the transceiver to facilitate the detection of the signal of the second frequency band. The present application does not limit the specific components of the signal acquisition unit and the signal separation unit.

[0012] In this way, when the first antenna unit transmits the signal of the first frequency band and the signal of the second frequency band simultaneously, power detection can also be performed on the signal of a single frequency band, which is beneficial to improving the efficiency of power detection of the signal.

[0013] In a possible implementation, the signal separation unit includes a bandpass filter and a bandstop filter, the bandpass filter is used to filter the collected signal sent by the first antenna unit to obtain a signal of the second frequency band, and the bandstop filter is used to filter the collected signal sent by the first antenna unit to obtain a signal of the first frequency band. In this way, signal separation is achieved through the bandpass filter and the bandstop filter, which is conducive to separation of signals of different frequency bands.

[0014] In a possible implementation, the bandpass filter includes a first inductor, a second inductor, a third inductor, a fourth inductor, a first capacitor, a second capacitor, a third capacitor and a fourth capacitor; the first end of the first inductor is the input end of the signal separation unit, the second end of the first inductor is connected to the first end of the first capacitor, the second end of the first capacitor is connected to the first end of the second inductor, and the second end of the second inductor is connected to the first end of the second capacitor; the second end of the first capacitor is also connected to the first end of the third inductor, and the second end of the third inductor is grounded; the first end of the second inductor is also connected to the first end of the third capacitor, and the second end of the third capacitor is grounded; the second end of the second capacitor is connected to the first end of the fourth inductor, and the second end of the fourth inductor is grounded; the second end of the second capacitor is also connected to the first end of the fourth capacitor, and the second end of the fourth capacitor is grounded; the second end of the second capacitor is the second output end of the signal separation unit. In this way, the bandpass filter can effectively output the signal of the second frequency band.

[0015] In a possible implementation, the band-stop filter includes a fifth inductor, a sixth inductor, a seventh inductor, an eighth inductor, a fifth capacitor, a sixth capacitor, a seventh capacitor and an eighth capacitor; the first end of the fifth inductor is the input end of the signal separation unit, the second end of the fifth inductor is connected to the first end of the sixth inductor, the first end of the fifth inductor is also connected to the first end of the fifth capacitor, the second end of the fifth inductor is also connected to the second end of the fifth capacitor, the second end of the fifth inductor is also connected to the first end of the seventh inductor, the second end of the seventh inductor is connected to the first end of the seventh capacitor, and the second end of the seventh capacitor is grounded; the first end of the sixth inductor is also connected to the first end of the sixth capacitor, the second end of the sixth inductor is also connected to the second end of the sixth capacitor, the second end of the sixth inductor is also connected to the first end of the eighth inductor, the second end of the eighth inductor is connected to the first end of the eighth capacitor, and the second end of the eighth capacitor is grounded; the second end of the sixth inductor is the first output end of the signal separation unit. In this way, the band-stop filter can effectively output the signal of the first frequency band.

[0016] In a possible implementation, the radio frequency module further includes a fourth switch unit and a second antenna unit, the first end of the fourth switch unit is connected to the first filter, and the second end of the fourth switch unit is connected to the second antenna unit; the fourth switch unit is used to be in an off state when the second service is to be processed while the second service is to be processed, and the second frequency band is required to be used when processing the second service. In this way, the fourth switch unit is in an off state, so that the second antenna unit and the second filter are not in a connected state, while the first antenna unit and the second filter are in a connected state, which is conducive to the signal of the second frequency band not being sent by the second antenna unit, but being sent by the first antenna unit.

[0017] In a possible implementation, the RF module further includes a fifth switch unit, the first end of the fifth switch unit is connected to the transceiver, and the second end of the fifth switch unit is connected to the first filter; the fifth switch unit is used to connect the first end of the fifth switch unit with the second end of the fifth switch unit when the first frequency band is required to be used when processing the first service, so that the reception and / or transmission of the signal of the first frequency band is realized through the first filter and the first antenna unit. In this way, when the first frequency band is used, the fifth switch unit connects the transceiver, the first filter and the first antenna unit, which is conducive to better realizing the transmission and reception of the signal of the first frequency band. In addition, the fifth switch unit can also connect other filters to realize the transmission of other frequency bands, and can realize the connection of different filters in different situations to realize the transmission of signals of different frequency bands, so that the use range of the RF module is wider.

[0018] In one possible implementation, the first service and the second service are implemented by the first SIM card in the electronic device where the radio frequency module is located. In the ENDC scenario, a SIM card can be deployed in the electronic device. When the electronic device implements the first service and the second service at the same time through this card, the first frequency band and the second frequency band can work at the same time. The first frequency band is used to implement the first service, and the second frequency band is used to implement the second service, which is conducive to improving the throughput rate of the frequency band in the ENDC scenario and reducing the impact on the data transmission of the service.

[0019] In one possible implementation, the first service is implemented by the first SIM card in the electronic device where the radio frequency module is located, and the second service is implemented by the second SIM card in the electronic device where the radio frequency module is located. In the DSDA scenario, two SIM cards can be deployed in the electronic device, and the two SIM cards can be the first SIM card and the second SIM card. The electronic device implements the first service through the first SIM card. At the same time, when the second service is implemented through the second SIM card, the first frequency band and the second frequency band can work at the same time. The first frequency band is used to implement the first service, and the second frequency band is used to implement the second service, which is conducive to improving the throughput rate of the frequency band in the DSDA scenario and reducing the impact on the data transmission of the service.

[0020] In a second aspect, the present application provides a radio frequency module, which includes a first filter, a second filter, a first switch unit, a second switch unit and a first antenna unit; the first filter is connected to the first end of the first switch unit, the second filter is connected to the second end of the first switch unit, the third end of the first switch unit is connected to the first antenna unit, the first end of the second switch unit is connected to the transceiver, and the second end of the second switch unit is connected to the second filter; the first filter is used to filter signals in a first frequency band, and the first frequency band is the frequency band used by the radio frequency module when transmitting signals in frequency division duplex mode FDD; the second filter is used to filter signals in a second frequency band, and the second frequency band is the frequency band used by the radio frequency module when transmitting signals in frequency division duplex mode FDD. A frequency band used when transmitting signals in time division duplex mode TDD; a second switch unit, used to connect the first end of the second switch unit with the second end of the second switch unit when the second frequency band is required to process the third service; a first switch unit, used to connect the first end of the first switch unit with the third end of the first switch unit and the second end of the first switch unit with the third end of the first switch unit when the first frequency band and the second frequency band are required to process the third service, so that the reception and / or transmission of the signal of the first frequency band in the third service is realized through the first filter and the first antenna unit, and the reception and / or transmission of the signal of the second frequency band in the third service is realized through the second filter and the first antenna unit.

[0021] To realize the third service, the first frequency band and the second frequency band work simultaneously. In the sending time slot of the second frequency band and the receiving time slot of the second frequency band, the signal of the first frequency band and the signal of the second frequency band are both sent or received through the first switch unit using the first antenna. In this way, when switching from the sending time slot of the signal of the second frequency band to the receiving time slot, or from the receiving time slot of the signal of the second frequency band to the sending time slot, the first switch unit is in a double-open mode, and the probability of the impedance at the first switch unit changing is small, which has little impact on the continuity of the gain and phase of the signal of the first frequency band, and thus has little impact on the throughput rate of the signal of the first frequency band, which is beneficial to reducing the impact on service realization.

[0022] In a possible implementation, the radio frequency module further includes a signal acquisition unit, the signal acquisition unit is connected to the input end of the signal separation unit, the first output end of the signal separation unit is connected to the first end of the third switch unit, the second output end of the signal separation unit is connected to the second end of the third switch unit, and the third end of the third switch unit is connected to the transceiver; the signal acquisition unit is used to collect the signal sent by the first antenna unit; the signal separation unit is used to separate the signal of the first frequency band and the signal of the second frequency band, the first output end of the signal separation unit is used to output the signal of the first frequency band, and the second output end of the signal separation unit is used to output the signal of the second frequency band; the third switch unit is used to connect the first output end of the signal separation unit to the transceiver when power detection is required for the signal of the first frequency band, and connect the second output end of the signal separation unit to the transceiver when power detection is required for the signal of the second frequency band. In this way, when the first antenna unit transmits the signal of the first frequency band and the signal of the second frequency band at the same time, power detection can also be performed on the signal of a single frequency band, which is conducive to improving the efficiency of power detection of the signal.

[0023] In a possible implementation, the radio frequency module further includes a fourth switch unit and a second antenna unit, wherein the first end of the fourth switch unit is connected to the first filter, and the second end of the fourth switch unit is connected to the second antenna unit; the fourth switch unit is used to be in an off state when the first frequency band and the second frequency band need to be used when processing the third service. In this way, the fourth switch unit is in an off state, so that the second antenna unit and the second filter are not in a connected state, while the first antenna unit and the second filter are in a connected state, which is conducive to the signal of the second frequency band not being sent by the second antenna unit, but being sent by the first antenna unit.

[0024] In one possible implementation, the third service is implemented by the first SIM card in the electronic device where the radio frequency module is located. In the ENDC scenario, a SIM card, namely the first SIM card, can be deployed in the electronic device. When the electronic device implements the third service at the same time through this card, the first frequency band and the second frequency band can work at the same time. The first frequency band is used to implement the first service, and the second frequency band is used to implement the second service, which is conducive to improving the throughput rate of the frequency band in the ENDC scenario and reducing the impact on the data transmission of the service.

[0025] In a third aspect, the present application provides an electronic device, comprising a control unit, a transceiver and a radio frequency module according to any one of the first aspects, wherein the control unit is used to control the transceiver to receive data from each antenna unit in the electronic device through the radio frequency module, and to send data through each antenna unit in the electronic device.

[0026] In a fourth aspect, the present application provides an electronic device, which may also be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), etc. The terminal device may be a mobile phone, a smart TV, a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc.

[0027] The electronic device includes a transceiver, a first antenna unit and any one of the radio frequency modules in the first aspect.

[0028] In a fifth aspect, the present application provides a chip, the chip comprising any RF module of the above-mentioned first aspect.

[0029] It should be understood that the third to fifth aspects of the present application correspond to the technical solutions of the first or second aspect of the present application, and the beneficial effects achieved by each aspect and the corresponding feasible implementation methods are similar and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of frequency band transmission;

[0031] Figure 2 It is a schematic diagram of the hardware structure of a terminal device;

[0032] Figure 3 It is a schematic diagram of a time slot signal transmission in the N41 frequency band;

[0033] Figure 4 It is a schematic diagram of receiving time slot signal transmission in the N41 frequency band;

[0034] Figure 5 is a schematic diagram of a radio frequency module provided in an embodiment of the present application;

[0035] Figure 6It is a schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present application;

[0036] Figure 7 is a schematic diagram of a combiner provided in an embodiment of the present application;

[0037] Figure 8 is a schematic diagram of another combiner provided in an embodiment of the present application;

[0038] Fig. 9 is a schematic diagram of a combiner simulation provided by an embodiment of the present application;

[0039] Fig.10 This is a schematic diagram of an IMD4 component falling into a B3RX receiving channel provided by an embodiment of the present application. DETAILED DESCRIPTION

[0040] In order to clearly describe the technical solution of the embodiment of the present application, the following description is first made:

[0041] In the embodiments of the present application, words such as "first" and "second" are used to distinguish the same or similar items with substantially the same functions and effects. For example, the first switch unit and the second switch unit are only used to distinguish different switch units, and do not limit their order. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit them to be different.

[0042] It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0043] In the embodiments of the present application, "at least one" refers to one or more, and "more than one" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, a--c, bc, or abc, where a, b, and c can be single or multiple.

[0044] It should be noted that the "at..." in the embodiment of the present application can be the instant when a certain situation occurs, or can be a period of time before or after a certain situation occurs, and the embodiment of the present application does not specifically limit this. In addition, the display interface provided in the embodiment of the present application is only an example, and the display interface can also include more or less content.

[0045] In ENDC, DSDA or ULCA scenarios, when the terminal device implements services, the terminal device can support two frequency bands to work at the same time. When the two frequency bands work at the same time, they will affect each other, resulting in a decrease in throughput and affecting the data transmission of the service.

[0046] When two frequency bands work at the same time, they affect each other because they share the RF front-end switch path, that is, they share a switch. When two frequency bands share a switch, the frequency bands affect each other and deteriorate the performance of a certain frequency band. Take ENDC as an example. For example, one of the frequency bands is the TDD frequency band of NR (such as N41), and the other frequency band is the LTE frequency band, such as B3, B1 or B39. The TDD frequency band N41 will switch uplink and downlink, and will also perform polling switching through the sounding reference signal (SRS). These switching actions will cause discontinuity in the impedance of the LTE frequency band, thereby affecting the performance of the LTE frequency band, resulting in a decrease in the throughput of the LTE frequency band and affecting the data transmission of the service.

[0047] For example, in the ENDC scenario, two frequency bands work simultaneously to download data. For example, the signal of the B3 frequency band is used to transmit control signaling through FDD, and the signal of the N41 frequency band is used to transmit data signaling through TDD to realize the download data service. When the signal of the N41 frequency band switches between uplink and downlink, it will affect the transmission of the signal of the B3 frequency band, resulting in a decrease in the throughput of the B3 frequency band. Alternatively, in the ENDC scenario, two frequency bands work simultaneously to realize different services. For example, the signal of the B3 frequency band is used to realize the call service through FDD, and the signal of the N41 frequency band is used to realize the download data service through TDD. When the signal of the N41 frequency band switches between uplink and downlink, it will affect the transmission of the signal of the B3 frequency band, resulting in a decrease in the throughput of the B3 frequency band.

[0048] Exemplarily, in a DSDA scenario, the terminal device implements different services through signals in different frequency bands. For example, the B3 band signal is used to implement the phone call service through FDD, and the N41 band signal is used to implement the data download service through TDD. When the N41 band signal is switched between uplink and downlink, it will affect the transmission of the B3 band signal, resulting in a decrease in the throughput rate of the B3 band.

[0049] ENDC, DSDA and ULCA essentially operate in two frequency bands simultaneously, so the above problems also exist in the ULCA scenario.

[0050] In order to better understand the scenario of two frequency bands working at the same time, the following Figure 1 The status when two frequency bands work simultaneously is introduced.

[0051] Exemplarily, the terminal device may transmit a signal in the B1 frequency band by means of FDD, and transmit a signal in the N41 frequency band by means of TDD. Figure 1 A schematic diagram of frequency band transmission is shown. Figure 1 As shown in a, when the B3 frequency band is working, the transmission of the B3 frequency band is realized through the quadplexer and switch 2 (that is, the TX1 pin of the quadplexer is connected to switch 2), and the reception of the B3 frequency band is realized through switch 2 and the quadplexer (that is, the RX1 pin of the quadplexer is connected to switch 2). At this time, switch 2 is in single-open mode. Figure 1 As shown in b, when the B3 band and the N41 band work at the same time, the transmission of the B3 band is realized through the quadplexer and switch 2 (that is, the TX1 pin of the quadplexer is connected to switch 2), the reception of the B3 band is realized through switch 2 and the quadplexer (that is, the RX1 pin of the quadplexer is connected to switch 2), and the transmission of the N41 band is realized through switch 1, the filter and switch 2 (that is, the TX pin of switch 1, the filter and switch 2 are connected). At this time, switch 2 is in double-on mode. Figure 1 As shown in c, the transmission of the B3 band is realized through the quadplexer and switch 2 (that is, the TX1 pin of the quadplexer is connected to switch 2), the reception of the B3 band is realized through switch 2 and the quadplexer (that is, the RX1 pin of the quadplexer is connected to switch 2), and the reception of the N41 band is realized through switch 1, the filter and switch 2 (that is, the RX pin of switch 1, the filter and switch 2 are connected). At this time, switch 2 is in double-on mode.

[0052] from Figure 1 It can be seen that the terminal device Figure 1 a to Figure 1 b in, or, the terminal device from Figure 1 a to Figure 1 c in the figure means that the N41 transmission time slot is switched to the receiving time slot, and the switch 2 is switched from the single-open mode to the double-open mode. For the R node, its impedance will change. Therefore, when the N41 band and the B3 band share switch 2, the uplink and downlink switching of the N41 band will cause the R node impedance to change, affecting the performance of the B3 band, resulting in a decrease in the throughput of the B3 band, and further affecting the data transmission of the service.

[0053] In order to better understand the interference caused by different frequency bands working at the same time, the following takes the terminal equipment transmitting the B3 band and the N41 band as an example to introduce the interference of the N41 band on the B3 band.

[0054] For example, Figure 2 A schematic diagram showing the hardware structure of a terminal device is shown. Figure 2 As shown, the terminal device includes an AP chip 201, a transceiver 202, a middle high band (MHB) RF module 203, a switch 204, a diversity reception module 205, a filter 206, a filter 207, antennas (ANT) 1, ANT 2, ANT 3, and ANT 4. In an example, the MHB RF module 203 may be an LPAMID module, the switch 204 may be a DPAT, and the diversity reception module 205 may be an LDiFEM.

[0055] The AP chip 201 is connected to the transceiver 202, and the transceiver 202 is connected to the MHB RF module 203 through the MBIN port and the HBIN port. The MHB RF module 203 is also connected to ANT1 through the ANT1 port, connected to ANT2 through the ANT2 port, connected to the diversity receiving module 205 through the TRX2 port, connected to the transceiver 202 through the OUT1 port to the OUT4 port, connected to the switch 204 through the OUT port, and connected to the transceiver 202 through the CPL1 port to the CPL2 port. The diversity receiving module 205 is also connected to the transceiver 202. The switch 204 is respectively connected to ANT3 and ANT4, and is also respectively connected to the filter 206 and the filter 207, and the filter 206 and the filter 207 are also respectively connected to the transceiver 202. Among them, the OUT1 port to the OUT4 port can also be described as the LANOUT1 port to the LANOUT4 port, which is not limited in the embodiment of the present application.

[0056] The MHB RF module 203 may include a mid-band power amplifier 2031, a mid-band switching switch 2032, a quadplexer 2033, a duplexer 2034, an antenna switch 2035, a high-band power amplifier 2036, a high-band switching switch 2037, a filter 2038, a filter 2039, a switch 20310, a coupler 20311, a coupler 20312, a switch 20313 and a matrix switch 20314. Figure 2 The low noise amplifier (LNA) connected to the matrix switch 20314 and the switch connected to the low noise amplifier are not described in detail here. The matrix switch 20314 can also be called a MUX, which is not limited in the embodiment of the present application.

[0057] The AP chip 201 can instruct the transceiver 202 to send or receive a signal in the B3 frequency band, or can instruct the transceiver 202 to send or receive a signal in the N41 frequency band. The transceiver 202 can be one transceiver or two transceivers, which is not limited in the embodiment of the present application. If the transceiver 202 is two transceivers, one of the transceivers can be used to send or receive a signal in the B3 frequency band, and the other transceiver can be used to send or receive a signal in the N41 frequency band. The mid-band power amplifier 2031 is used to amplify a signal in the mid-band, such as a signal in the B3 frequency band. The high-band power amplifier 2036 is used to amplify a signal in the high-band, such as a signal in the N41 frequency band. The mid-band switching switch 2032 is used to connect the mid-band power amplifier 2031 to the quadplexer 2033 and / or the duplexer 2034. The high-band switching switch 2037 is used to connect the high-band power amplifier 2036 to the filter 2038 and / or the filter 2039. The antenna switch 2035 is used to connect at least one of the quadplexer 2033, the duplexer 2034, the filter 2038 or the filter 2039 to ANT1 or ANT2. The antenna switch 2035 can also be used to connect ANT1 or ANT2 to the diversity receiving module 205. The coupler 20311 is used to collect signals transmitted by antenna 1, and the coupler 20312 is used to collect signals transmitted by antenna 2. The switch 20313 is used to connect the coupler 20311 and / or the coupler 20312 to the transceiver 202. The switch 204 is used to connect ANT3 (or ANT4) to the filter 206 or the filter 207. The matrix switch 20314 is used to connect the quadplexer 2033 and / or the high frequency band switching switch 2037 to the transceiver 202.

[0058] When the terminal device sends a signal through ANT1, the coupler 20311 can collect the signal sent by ANT1, and transmit the collected signal to the transceiver 202 through the switch 20313, so that the AP chip 201 can determine the power of the signal sent by ANT1, and then indicate the power of the signal sent by the subsequent transceiver 202. Similarly, when the terminal device sends a signal through ANT2, the coupler 20312 can collect the signal sent by ANT2, and transmit the collected signal to the transceiver 202 through the switch 20313, so that the AP chip 201 can determine the power of the signal sent by ANT2, and then indicate the power of the signal sent by the subsequent transceiver 202.

[0059] In the ENDC scenario, the terminal device can Figure 2The hardware structure shown transmits N41 band signals and B3 band signals to implement services. If N41 band signals and B3 band signals are sent through ANT1 or ANT2, due to the nonlinearity of the antenna switch 2035, when N41 band signals and B3 band signals are transmitted simultaneously, the fourth-order intermodulation (IMD4) of N41 band signals and B3 band signals will fall within the receiving band of B3, resulting in the sensitivity of B3 receiving (RX) being affected. Therefore, the terminal device generally sends N41 band signals and B3 band signals on different antennas.

[0060] The terminal device can transmit the B3 band signal by FDD and can transmit the N41 band signal by TDD. In the transmission time slot of the N41 band signal, the terminal device can send and receive the B3 band signal and can send the N41 band signal. In the reception time slot of the N41 band signal, the terminal device can send and receive the B3 band signal and can receive the N41 band signal.

[0061] Combine the following Figure 3 The transmission time slots of signals in the N41 frequency band, and the transmission paths of signals in the B3 frequency band and signals in the N41 frequency band are introduced.

[0062] Figure 3 The schematic diagram shows the transmission time slot of the signal in the N41 frequency band, the transmission path of the signal in the B3 frequency band and the signal in the N41 frequency band. Figure 3 As shown in the above Figure 2 In the hardware structure shown, the terminal device can send and receive signals in the B3 band through ANT1, and can send signals in the N41 band through ANT3. In the sending time slot of the signal in the N41 band, the terminal device can instruct the transceiver 202 to send and receive signals in the B3 band through the AP chip 201. The sending path of the signal in the B3 band is: transceiver 202->mid-band power amplifier 2031->mid-band switching switch 2032->quadplexer 2033->antenna switch 2035->ANT1. The receiving path of the signal in the B3 band is: ANT1->antenna switch 2035->quadplexer 2033->matrix switch 20314->transceiver 202. The receiving path of the B3 band is not shown in FIG. Figure 3 The terminal device can instruct the transceiver 202 to send a signal in the N41 frequency band through the AP chip 201. The transmission path of the signal in the N41 frequency band is: transceiver 202->high frequency band power amplifier 2036->high frequency band switch 2037->filter 2038->switch 20310->switch 204->ANT3.

[0063] It should be noted that the terminal device can also transmit signals in the N41 frequency band on ANT1, ANT2 and ANT4. Since the transmission time is short, it can be ignored in the embodiment of the present application.

[0064] Combine the following Figure 4 The receiving time slot of the signal in the N41 frequency band, and the transmission paths of the signal in the B3 frequency band and the signal in the N41 frequency band are introduced.

[0065] Figure 4 The schematic diagram shows the transmission paths of the signals in the B3 band and the N41 band in the reception time slot of the signals in the N41 band. In the reception time slot of the signals in the N41 band, the terminal device can send and receive the signals in the B3 band and can receive the signals in the N41 band. The terminal device can receive the signals in the B3 band through four antennas. Figure 4 As shown in the above Figure 2 In the hardware structure shown, the terminal device can send and receive signals in the B3 frequency band through ANT1, and can receive signals in the N41 frequency band through ANT1, ANT2, ANT3, and ANT4. In the reception time slot of the signal in the N41 frequency band, the terminal device can instruct the transceiver 202 to send and receive signals in the B3 frequency band through the AP chip 201. The transmission path of the signal in the B3 frequency band is: transceiver 202->mid-band power amplifier 2031->mid-band switching switch 2032->quadplexer 2033->antenna switch 2035->ANT1. The transmission path of the signal in the B3 frequency band is not shown in FIG. Figure 4 The receiving path of the signal in the B3 frequency band is: ANT1->antenna switch 2035->quadplexer 2033->matrix switch 20314->transceiver 202. The terminal device can instruct the transceiver 202 to receive the signal in the N41 frequency band through the AP chip 201. The receiving path of the signal in the N41 frequency band includes 4. The first receiving path of the signal in the N41 frequency band is: ANT3—>switch 204—>filter 206—>transceiver 202; the second receiving path of the signal in the N41 frequency band is: ANT4—>switch 204—>filter 207—>transceiver 202; the third receiving path of the signal in the N41 frequency band is: ANT1—>antenna switch 2035—>filter 2038—>high frequency band switching switch 2037—>matrix switch 20314—>transceiver 202; the fourth receiving path of the signal in the N41 frequency band is: ANT2—>antenna switch 2035—>diversity receiving module 205—>transceiver 202.

[0066] When the terminal device transmits the signal of N41 frequency band, there are frequent uplink and downlink switching, or in other words, the above Figure 3 and Figure 4 The transmission path shown. Figure 3In the embodiment, the quadplexer 2033 is connected to ANT1 through the antenna switch 2035. At this time, the antenna switch 2035 can be said to be in the single-open mode. Figure 4 In the embodiment, the quadplexer 2033 is connected to ANT1 through the antenna switch 2035 and the filter 2038 respectively. At this time, the antenna switch 2035 can be said to be in a dual-on mode. Figure 3 The transmission path shown to Figure 4 In the transmission path shown, the quadplexer 2033 changes from the single-on mode to the dual-on mode, which causes the impedance at the antenna switch 2035 to change. Figure 4 The transmission path shown to Figure 3 In the transmission path shown, the change of the quadplexer 2033 from the dual-on mode to the single-on mode will also cause the impedance at the antenna switch 2035 to change, which will affect the gain and phase continuity of the signal in the B3 frequency band, thereby causing the error vector magnitude (EVM) to deteriorate, affecting the throughput rate of the signal in the B3 frequency band, and further affecting the data transmission of the service.

[0067] In view of this, the embodiment of the present application provides a radio frequency module and an electronic device, which enables the signal of the N41 frequency band and the signal of the B3 frequency band to be sent on the same antenna through the antenna switch 2035, and receives the signal of the N41 frequency band and the signal of the B3 frequency band on the same antenna, so that the antenna switch 2035 is always in a dual-open mode, and the impedance will not change due to the uplink and downlink switching of the signal of the N41 frequency band, thereby reducing the impact on the signal of the B3 frequency band, which is conducive to improving the data transmission of the service. It should be noted that when the signal of the N41 frequency band and the signal of the B3 frequency band are sent on the same antenna, the IMD4 of the signal of the N41 frequency band and the signal of the B3 frequency band will fall within the receiving frequency band of B3, and the impact on the sensitivity of B3RX is within the acceptable range. The specific reasons will be described in detail in the subsequent embodiments and will not be repeated here.

[0068] In the ENDC, DSDA and ULCA scenarios, the frequency bands transmitted simultaneously may include: N41 band and B3 band, N41 band and B1 band, N41 band and B39 band, N40 band and B3 band, N40 band and B1 band, N40 band and B39 band, etc., and the methods provided in the embodiments of the present application are all applicable.

[0069] Figure 5 FIG. 1 is a schematic diagram of a radio frequency module provided in an embodiment of the present application. Figure 5As shown, the RF module includes a first filter 501, a second filter 502, a first switch unit 503, a second switch unit 504 and a first antenna unit 505; the first filter 501 is connected to a first end of the first switch unit 503, the second filter 502 is connected to a second end of the first switch unit 503, the third end of the first switch unit 503 is connected to the first antenna unit 505, the first end of the second switch unit 504 is connected to the transceiver, and the second end of the second switch unit 504 is connected to the second filter 502; the first filter 501 is used to filter signals in a first frequency band, and the first frequency band is the frequency band used by the RF module when transmitting signals in a frequency division duplex mode FDD; the second filter 502 is used to filter signals in a second frequency band, and the second frequency band is the frequency band used by the RF module when transmitting signals in a time division duplex mode TDD; the first switch unit 503 is used to When the first frequency band needs to be used when processing the first service, the first end of the first switch unit 503 is connected to the third end of the first switch unit 503, so that the reception and / or transmission of the signal of the first frequency band is realized through the first filter 501 and the first antenna unit 505; the first switch unit 503 is also used to connect the second end of the first switch unit 503 to the third end of the first switch unit 503 when the second service needs to be processed at the same time during the processing of the first service, and the second frequency band needs to be used when processing the second service; the second switch unit 504 is used to connect the first end of the second switch unit 504 to the second end of the second switch unit 504, so that the reception and / or transmission of the signal of the first frequency band is maintained through the first filter 501 and the first antenna unit 505, and the reception and / or transmission of the signal of the second frequency band is realized through the second filter 502 and the first antenna unit 505.

[0070] The first frequency band may be a B3 frequency band, a B1 frequency band, a B39 frequency band, and the like. The second frequency band may be an N40 or N41 frequency band, and the like. This is not limited in the embodiments of the present application. The first filter 501 may be a duplexer or a quadplexer, and the embodiments of the present application are not limited in this regard. The first antenna unit 505 may include one or more antennas, and the embodiments of the present application are not limited in this regard. In addition to connecting the first antenna unit 505, the first switch unit 503 may also be connected to at least one antenna unit, and the embodiments of the present application are not limited in this regard. In addition to connecting the second filter 502, the second switch unit 504 may also be connected to at least one filter. In this way, the second switch unit 504 can connect different filters under different circumstances to realize the transmission of signals in different frequency bands, so that the scope of use of the radio frequency module is wider.

[0071] The first service and the second service may be any two of services such as downloading data, making or receiving calls, playing videos, and running games, and the present embodiment of the present application does not limit this. The first filter 500 may be the above Figure 2 The filter 2033 shown, the second filter 502 can be the above Figure 2 The quadplexer 2033 shown in the figure, the first switch unit 503 can be the above Figure 2 The antenna switch 2035 shown in the figure, the second switch unit 504 can be the above Figure 2 The high frequency band switching switch 2037 shown in the figure, the first antenna unit 505 can be the above Figure 2 The transceiver shown in ANT1 can be Figure 2 The transceiver 202 is shown. Figure 2 include Figure 5 The structure shown in the present application can be applied to the above Figure 2 It should be noted that the present application embodiment can be applied to the terminal device including Figure 5 The terminal device of the structure shown is not limited to Figure 2 The structure shown.

[0072] In some implementations, Figure 5 The RF module shown may also include two power amplifiers, which may be used to amplify the power of the signal in the first frequency band and the power of the signal in the second frequency band, respectively. Figure 2 A mid-band power amplifier 2031 and a high-band power amplifier 2036 are shown.

[0073] In this way, the signal power is amplified, which is conducive to transmitting the signal over a longer distance.

[0074] In other implementations, Figure 5 The RF module shown may also include two LNAs, which may be used to power amplify and suppress noise for the received signal in the first frequency band, and power amplify and suppress noise for the received signal in the second frequency band. Figure 2 A low noise power amplifier connected to a matrix switch 20314 is shown.

[0075] In this way, the noise of the received signal can be suppressed, and the power of the signal other than the noise can be amplified, which is beneficial to improving the signal-to-noise ratio of the received signal.

[0076] In some further implementations, Figure 5 The RF module shown may also include a switch unit, which may be connected to the first filter 501 and may also be connected to at least one filter. Figure 2 The mid-band switching switch 2032 is shown.

[0077] In this way, the switch unit can connect different filters in different situations to achieve the transmission of signals in different frequency bands, making the RF module more widely used.

[0078] Figure 5 In the RF module shown, the transmission of the signal of the first frequency band is realized through the first filter 501 and the first antenna unit 505, and the transmission of the signal of the second frequency band is realized through the second filter 502 and the first antenna unit 505, that is, when the signal of the first frequency band and the signal of the second frequency band are transmitted simultaneously, they are both realized through the first antenna unit 505. In this way, in the transmission time slot of the signal of the second frequency band, the signal of the first frequency band is transmitted through the first filter 501 and the first antenna unit 505, the signal of the first frequency band is received through the first filter 501 and the first antenna unit 505, and the signal of the second frequency band is transmitted through the second filter 502 and the first antenna unit 505. In the reception time slot of the signal of the second frequency band, the signal of the first frequency band is transmitted through the first filter 501 and the first antenna unit 505, the signal of the first frequency band is received through the first filter 501 and the first antenna unit 505, and the signal of the second frequency band is received through the second filter 502 and the first antenna unit 505. In this way, when switching from the sending time slot of the signal of the second frequency band to the receiving time slot, or from the receiving time slot of the signal of the second frequency band to the sending time slot, the first switch unit 503 is in a double-open mode, that is, the signal of the first frequency band and the signal of the second frequency band use the first antenna, and the probability of impedance change is small, which has little impact on the continuity of the gain and phase of the signal of the first frequency band, and thus has little impact on the throughput rate of the signal of the first frequency band, which is beneficial to reducing the impact on business implementation.

[0079] Optionally, the first service and the second service are implemented by a first SIM card in the electronic device where the radio frequency module is located. In the ENDC scenario, a SIM card can be deployed in the electronic device. When the electronic device implements the first service and the second service at the same time through this card, the first frequency band and the second frequency band can work at the same time. The first frequency band is used to implement the first service, and the second frequency band is used to implement the second service, which is conducive to improving the throughput rate of the frequency band in the ENDC scenario and reducing the impact on the data transmission of the service.

[0080] Optionally, the first service is implemented by a first SIM card in the electronic device where the radio frequency module is located, and the second service is implemented by a second SIM card in the electronic device where the radio frequency module is located. In the DSDA scenario, two SIM cards can be deployed in the electronic device, and the two SIM cards can be a first SIM card and a second SIM card. The electronic device implements the first service through the first SIM card. At the same time, when the second service is implemented through the second SIM card, the first frequency band and the second frequency band can work at the same time. The first frequency band is used to implement the first service, and the second frequency band is used to implement the second service, which is conducive to improving the throughput rate of the frequency band in the DSDA scenario and reducing the impact on the data transmission of the service.

[0081] Optionally, the RF module also includes a signal acquisition unit, which is connected to the input end of the signal separation unit, the first output end of the signal separation unit is connected to the first end of the third switch unit, the second output end of the signal separation unit is connected to the second end of the third switch unit, and the third end of the third switch unit is connected to the transceiver; the signal acquisition unit is used to collect the signal sent by the first antenna unit 505; the signal separation unit is used to separate the signal of the first frequency band and the signal of the second frequency band, the first output end of the signal separation unit is used to output the signal of the first frequency band, and the second output end of the signal separation unit is used to output the signal of the second frequency band; the third switch unit is used to connect the first output end of the signal separation unit to the transceiver when power detection of the signal of the first frequency band is required, and connect the second output end of the signal separation unit to the transceiver when power detection of the signal of the second frequency band is required.

[0082] When the signal of the first frequency band and the signal of the second frequency band are sent using the first antenna unit 505, if the signal of the first frequency band is detected, the signal acquisition unit can acquire the signal sent by the first antenna unit 505, the signal separation unit can separate the signal of the first frequency band from the signal of the second frequency band, and the third switch unit connects the first output end of the signal separation unit with the transceiver to facilitate the detection of the signal of the first frequency band. If the signal of the second frequency band is detected, the signal acquisition unit can acquire the signal sent by the first antenna unit 505, the signal separation unit can separate the signal of the first frequency band from the signal of the second frequency band, and the third switch unit connects the second output end of the signal separation unit with the transceiver to facilitate the detection of the signal of the second frequency band. The embodiments of the present application do not limit the specific components of the signal acquisition unit and the signal separation unit.

[0083] In this way, when the first antenna unit 505 transmits the signal of the first frequency band and the signal of the second frequency band at the same time, it can also perform power detection on the signal of a single frequency band, which is beneficial to improve the efficiency of power detection of the signal. Figure 6 An electronic device including a radio frequency module provided in an embodiment of the present application is introduced.

[0084] Figure 6 FIG. 1 shows a hardware structure diagram of an electronic device provided in an embodiment of the present application. Figure 6 As shown, the electronic device includes the above Figure 2 The structure shown also includes a combiner 601 and a switch 602. The quadplexer 2033 is used to represent the first filter 501, the filter 2038 is used to represent the second filter 502, the antenna switch 2035 is used to represent the first switch unit 503, the high frequency band switching switch 2037 is used to represent the second switch unit 504, ANT1 is used to represent the second switch unit 505, and the transceiver 202 is used to represent the transceiver. The coupler 601 can be used to represent the signal acquisition unit, and the combiner 602 is used to represent the signal separation unit. The switch 20310 is used to represent the fourth switch unit, which is used to be in the off state when the second service is processed while the second service is processed, and the second service needs to be processed in the second frequency band. The mid-frequency band switching switch 2032 is used to represent the fifth switch unit, and the fifth switch unit is used to connect the first end of the fifth switch unit with the second end of the fifth switch unit when the first service needs to be processed in the first frequency band, so that the reception and / or transmission of the signal of the first frequency band is realized through the first filter 501 and the first antenna unit 503. The embodiment of the present application is described by taking the example that the signal in the second frequency band is a signal in the N41 frequency band and the signal in the first frequency band is a signal in the B3 frequency band.

[0085] In the embodiment of the present application, in the reception time slot of the signal in the N41 frequency band, the electronic device can instruct the transceiver 202 to send and receive the signal in the B3 frequency band through the AP chip 201. The transmission path of the signal in the B3 frequency band is: transceiver 202->mid-band power amplifier 2031->mid-band switching switch 2032->quadplexer 2033->antenna switch 2035->ANT1. The reception path of the signal in the B3 frequency band is: ANT1->antenna switch 2035->quadplexer 2033->matrix switch 20314->transceiver 202. The reception path of the signal in the B3 frequency band is not in Figure 6As shown in. The electronic device can instruct the transceiver 202 to receive the signal of the N41 frequency band through the AP chip 201. The receiving paths of the signal of the N41 frequency band include 4. The first receiving path of the signal of the N41 frequency band is: ANT3—>switch 204—>filter 206—>transceiver 202; the second receiving path of the signal of the N41 frequency band is: ANT4—>switch 204—>filter 207—>transceiver 202; the third receiving path of the signal of the N41 frequency band is: ANT1—>antenna switch 2035—>filter 2038—>high frequency band switching switch 2037—>matrix switch 20314—>transceiver 202; the fourth receiving path of the signal of the N41 frequency band is: ANT2—>antenna switch 2035—>diversity receiving module 205—>transceiver 202. The four receiving paths of the signal of the N41 frequency band are not shown in Figure 6 Shown in.

[0086] In the transmission time slot of the signal in the N41 frequency band, the electronic device can instruct the transceiver 202 to transmit and receive the signal in the B3 frequency band through the AP chip 201. The transmission path of the signal in the B3 frequency band is: transceiver 202->mid-band power amplifier 2031->mid-band switching switch 2032->quadplexer 2033->antenna switch 2035->ANT1. The receiving path of the signal in the B3 frequency band is: ANT1->antenna switch 2035->quadplexer 2033->matrix switch 20314->transceiver 202. The receiving path of the B3 frequency band is not in Figure 6 The electronic device can instruct the transceiver 202 to send a signal in the N41 frequency band through the AP chip 201. The transmission path of the signal in the N41 frequency band is: transceiver 202->high frequency band power amplifier 2036->high frequency band switch 2037->filter 2038->antenna switch 2035->ANT1.

[0087] The electronic device sends signals in the B3 frequency band and the N41 frequency band through ANT1. In this way, there is no need to change the hardware structure of the MHB RF module 203. It can be achieved that no matter in the sending time slot of the signal in the N41 frequency band or in the receiving time slot of the signal in the N41 frequency band, the quadplexer 2033 and the filter 2038 will be connected to ANT1, and the antenna switch 2035 will be in the double-on mode. The probability of the impedance at the antenna switch 2035 changing is small, and thus the effect on the continuity of the gain and phase of the signal in the B3 frequency band is small, so that the impact on the throughput rate of the signal in the B3 frequency band is small, which is beneficial to reducing the impact on the data transmission of the business.

[0088] ANT1 can transmit signals in the B3 frequency band and signals in the N41 frequency band. The coupler 20311 can collect the signals in the B3 frequency band and signals in the N41 frequency band in ANT1, and transmit the signals in the B3 frequency band and signals in the N41 frequency band to the combiner 601 through the switch 20313. The combiner 601 can separate the signals in the B3 frequency band and signals in the N41 frequency band, and transmit the separated signals to the switch 602. The switch 602 can connect one output of the combiner 601 to the transceiver 202. The transceiver 202 can obtain the signals in the B3 frequency band or the N41 frequency band, and the AP chip can detect the power of the signals in the B3 frequency band or the N41 frequency band to determine the power loss of the signals in the B3 frequency band or the N41 frequency band from the transceiver 202 to ANT1. In this way, the isolation of the signals in the two frequency bands is realized through the combiner 601, which is conducive to realizing the power detection of the signals in the B3 frequency band and the N41 frequency band separately.

[0089] The combiner 601 may be any device that can separate the signal of the B3 frequency band from the signal of the N41 frequency band. In one example, the combiner 601 may be a combiner that is a combination of a bandpass filter and a bandstop filter, and the combiner may output the signal of the N41 frequency band from the bandpass filter and output the signal of the B3 frequency band from the bandstop filter.

[0090] For example, Figure 7 A schematic diagram of a combiner is shown. Figure 7 As shown, the combiner 601 is a bandpass filter + bandstop filter combiner implemented based on lumped parameter elements (inductors and capacitors). The input of the bandpass + bandstop combiner can be the signal of the B3 frequency band and the signal of the N41 frequency band collected by the coupler 20311, the output of the bandpass filter 701 in the bandpass + bandstop combiner can output the signal of the N41 frequency band, and the output of the bandstop filter 702 in the bandpass + bandstop combiner can output the signal of the B3 frequency band.

[0091] like Figure 7As shown, the bandpass filter 701 includes a first inductor 7011, a second inductor 7012, a third inductor 7013, a fourth inductor 7014, a first capacitor 7015, a second capacitor 7016, a third capacitor 7017 and a fourth capacitor 7018; the first end of the first inductor 7011 is the input end of the combiner 601, the second end of the first inductor 7011 is connected to the first end of the first capacitor 7015, the second end of the first capacitor 7015 is connected to the first end of the second inductor 7012, and the second end of the second inductor 7012 is connected to the first end of the second capacitor 7016; the second end of the first capacitor 7015 is also connected to the first end of the third inductor 7013, and the second end of the third inductor 7013 is grounded; the first end of the second inductor 7012 is also connected to the first end of the third capacitor 7017, and the second end of the third capacitor 7017 is grounded; The second end of the second capacitor 7016 is connected to the first end of the fourth inductor 7014, and the second end of the fourth inductor 7014 is grounded; the second end of the second capacitor 7016 is also connected to the first end of the fourth capacitor 7018, and the second end of the fourth capacitor 7018 is grounded; the second end of the second capacitor 7016 is the second output end of the combiner 601.

[0092] The band-stop filter includes a fifth inductor 7021, a sixth inductor 7022, a seventh inductor 7023, an eighth inductor 7026, a fifth capacitor 7025, a sixth capacitor 7026, a seventh capacitor 7027 and an eighth capacitor 7028; the first end of the fifth inductor 7021 is the input end of the combiner 601, the second end of the fifth inductor 7021 is connected to the first end of the sixth inductor 7022, the first end of the fifth inductor 7021 is also connected to the first end of the fifth capacitor 7025, the second end of the fifth inductor 7021 is also connected to the second end of the fifth capacitor 7025, the second end of the fifth inductor 7021 is also connected to the seventh inductor The first end of the sixth inductor 7022 is connected to the first end of the sixth capacitor 7026, the second end of the sixth inductor 7022 is connected to the second end of the sixth capacitor 7026, the second end of the sixth inductor 7022 is connected to the first end of the eighth inductor 7026, the second end of the eighth inductor 7026 is connected to the first end of the eighth capacitor 7028, and the second end of the eighth capacitor 7028 is grounded; the second end of the sixth inductor 7022 is the first output end of the combiner 601.

[0093] In another example, the combiner 601 may be a combiner of a high-pass filter and a low-pass filter, and the combiner may output a signal in the N41 frequency band from the high-pass filter and output a signal in the B3 frequency band from the low-pass filter.

[0094] For example, Figure 8 A schematic diagram of a combiner is shown. Figure 8 As shown, the combiner 601 includes a high-pass filter 801 and a low-pass filter 802. The coupler 20311 can transmit the collected N41 band signal and B3 band signal to the combiner 601. The combiner 601 outputs the N41 band signal from the high-pass filter 801 and outputs the B3 band signal from the low-pass filter 802.

[0095] The embodiment of the present application quantitatively calculates whether the combiner 601 can perform signal separation. Because the signals of the two frequency bands have dynamic power adjustment in the ENDC scenario, the power of the signals of the two frequency bands can be flexibly adjusted, and the total power can be limited to not exceed a certain threshold, such as 23dBm. The most extreme scenario is: the signal to be detected by the AP chip 201 is the small signal f1, and the large signal f2 is not detected. At this time, f2 forms a strong interference to f1, which may affect the detection accuracy of f1. It has been verified that in this extreme scenario, the AP chip can not perform power detection on the small signal f1 and turn it into open-loop control, or, by reasonably designing the isolation of the combiner 601, the power detection of the small signal f1 can be met.

[0096] Assume that the transmission power of the signal in the B3 frequency band is -40dBm, the transmission power of the signal in the N41 frequency band is 26dBm, and the coupling coefficient of the coupler 20311 is 25dB. At the output port of the coupler 20311, the transmission power of the signal in the B3 frequency band is -40-25=-65dBm, and the transmission power of the signal in the N41 frequency band is 26-25=+1dBm. According to the calculation of the sensitivity of the transceiver 202, when the isolation of the combiner 601 reaches about 48dBc, that is, after the N41 signal of the B3 path is suppressed by 48dB, the sensitivity impact of the B3 power detection on the transceiver 202 is less than 0.5dB, which is an acceptable range. That is to say, in the most extreme scenario B3=-40dBm, N41=+26dBm, if the isolation of the combiner 601 reaches about 48dBc, the signal of the B3 frequency band can be detected after passing through the combiner 601, which can meet the detection of small signals. If the detection of small signals can be achieved under the most extreme and common conditions, the detection of small signals can be achieved in other scenarios. In order to verify whether the isolation of the combiner 601 provided in the embodiment of the present application can reach 48dBc, the embodiment of the present application is simulated.

[0097] For example, Fig. 9 A schematic diagram of a simulation is shown. Fig. 9As shown, combiner 601 is a combiner of a bandpass filter + a bandstop filter realized based on lumped parameter elements (inductors, capacitors), and the inductor Q value in combiner 601 is about 30. dB(S(1,2)) is used to represent the frequency response curve of the bandpass filter, and signals other than N41 are blocked; dB(S(1,3)) is used to represent the frequency response curve of the bandstop filter, and signals in the N41 frequency band are blocked, and signals other than N41 can pass (for example, signals other than N41 include B1, B3, and B39). The horizontal axis represents frequency, and the vertical axis represents loss or suppression. The frequency shown in m1 is 1.980 GHz (i.e., the upper frequency limit of B1 and B39), the frequency shown in m2 is 2.515 GHz (the lower frequency limit of the N41N frequency band), and the frequency shown in m3 is 2.675 GHz (the upper frequency limit of the N41N frequency band). The suffix N of N41N means narrow band, which is the N41 frequency range in China.

[0098] The frequency band of N41 is from 2.515 GHz to 2.675 GHz. When the frequency is 2.515 GHz, dB(S(1,2))=-5.490, dB(S(1,3))=-53.641. The suppression degree of the bandpass filter of combiner 601 on the signal of N41 band is -5.490, and the suppression degree of the bandpass filter of combiner 601 on the signal of B3 band is -53.641. The isolation between the two paths is equal to -5.490-(-53.641)=48.151. The bandpass filter can effectively suppress the signal of B3 band to output the signal of N41 band. When the frequency is 2.675GHz, dB(S(1,2))=-5.513, dB(S(1,3))=-56.724, the suppression degree of the bandpass filter of combiner 601 on the signal of N41 frequency band is -5.513, the suppression degree of the bandpass filter of combiner 601 on the signal of B3 frequency band is -56.724, the isolation degree of the two paths is equal to -5.513-(-56.724)=51.211, the bandpass filter can effectively suppress the signal of B3 frequency band to output the signal of N41 frequency band. If the isolation degree of more than 48dBc can be achieved at both ends of the frequency, the isolation degree of more than 48dBc can be achieved between 2.515GHz and 2.675GHz.

[0099] When the frequency is 2.515GHz, dB(S(1,2))=-51.762, dB(S(1,3))=-1.161, the suppression degree of the band-stop filter of the combiner 601 on the signal of the N41 frequency band is -51.762, and the suppression degree of the band-stop filter of the combiner 601 on the signal of the B3 frequency band is -1.161, and the isolation degree of the two paths is equal to -1.161- (-51.762)=50.601. The band-stop filter can effectively suppress the signal of the N41 frequency band to output the signal of the B3 frequency band. The frequency band of B3 is less than 1.980GHz, and the isolation degree of more than 48dBc can be achieved at 1.980GHz, and the isolation degree of more than 48dBc can be achieved in the frequency band of B3.

[0100] from Fig. 9 It can be seen that the combiner 601 provided in the embodiment of the present application can achieve an isolation of more than 48dBc.

[0101] In an embodiment of the present application, signals in the N41 frequency band and signals in the B3 frequency band are sent on the same antenna, such as the above-mentioned ANT1, and the IMD4 of the signals in the N41 frequency band and the signals in the B3 frequency band will fall within the receiving frequency band of B3, and the impact on the sensitivity of B3RX is within an acceptable range. In other words, not all IMD4s fall within the receiving frequency band of B3, and the impact on the receiving frequency band of B3 is within an acceptable range.

[0102] For example, the maximum sensitivity degradation (MSD) requirement when B3 and N41 are transmitted simultaneously in the ENDC scenario defined in 3GPP is shown in Table 1.

[0103]

[0104] As shown in Table 1, according to the definition of bandwidth, the center frequency of B3 is 1740MHz, the bandwidth is 5MHz, the system bandwidth is 25RB, and the corresponding downlink receiving center frequency is 1835MHz. The maximum sensitivity reduction allowed by IMD4 is 8.2dB. The center frequency of N41 is 2657.5MHz, the bandwidth is 10MHz, the system bandwidth is 50RB, and the corresponding downlink receiving center frequency is 2657.5MHz. IMD4 will not affect it.

[0105] The switch 2035 is nonlinear. When the switch 2035 transmits the signal of the N41 frequency band and the signal of the B3 frequency band at the same time, IMD4 will be generated. After calculation, only 25% of the IMD4 components fall into the B3RX receiving channel.

[0106] For example, Fig.10FIG. 4 shows a schematic diagram of an IMD4 component falling into the B3RX receiving channel. Fig.10 As shown in the figure, IMD4 is distributed in the frequency range of 1820MHz~1850MHz. The vertical axis is the spectrum distribution density of the IMD4 component. Its spectrum distribution forms a trapezoid. The shaded area is the IMD4 size of the B3RX channel in this scenario. Calculating the shaded area, only 25% of the IMD4 component falls into the B3RX receiving channel.

[0107] The embodiment of the present application also quantitatively calculates the IMD4 of the switch 2035. For example, assuming that in the existing network, the sum of the maximum transmission power of the signal in the N41 frequency band and the signal in the B3 frequency band in the ENDC scenario is 23dBm, when the transmission power of the signal in the N41 frequency band is 20dBm, and the transmission power of the signal in the B3 frequency band is 20dBm, the maximum IMD4 can be generated. Taking into account the power loss during the transmission of the signal from the transceiver 202 to the switch 2035, it can be assumed that the power of the signal transmitted to the switch 2035 is 23dBm, that is, the transmission power of the signal in the N41 frequency band and the signal in the B3 frequency band are both 23dBm. At this time, the IIP4 of the switch 2035 adopts the indicator of the existing switch, which is generally around +65dBm. According to the calculation formula of IMD4: IMD4=2 P1+2 P2-3 IIP4, we can get IMD4=2 23+2 23-3 65=-103dBm, so a total of -103dBm of IMD4 energy will be generated.

[0108] according to Fig.10 As shown in Figure 2, only 25% of IMD4 falls into the B3RX channel, -103dBm+10 log(25%)=-109dBm, therefore, B3RX is only affected by -109dBm interference. Assuming there is no interference, the sensitivity of B3 can reach -100dBm (-100dBm can also be expressed as 10 -10 mW), if -109dBm is added (-109dBm can also be expressed as 10 -10.9 mW) of IMD4 interference, the sensitivity value of B3 can be 10 log(10 -10 +10 -10.9 ) =10 log(1.13E-10)=-99.485dBm, which is -99.485dBm-(-100 dBm)=0.515dB worse than the original interference-free situation (i.e. -100dBm), that is, the sensitivity will be reduced by about 0.5dB, or in other words, the desensitization is about 0.5dB, which is much smaller than the maximum desensitization requirement of 8.2 shown in Table 1.

[0109] Therefore, the IMD4 generated by the switch 2035 will not cause the sensitivity of B3 to deteriorate. The signal of the B3 frequency band and the signal of the N41 frequency band are transmitted on the same antenna port, and there is no risk of sensitivity deterioration.

[0110] Above Figure 5 The RF module shown in the figure describes a scenario in which the first frequency band and the second frequency band work simultaneously when the first service and the second service are implemented. The following describes the scenario based on the above Figure 5 The illustrated example shows a scenario in which the first frequency band and the second frequency band work simultaneously when the RF module implements the third service.

[0111] The radio frequency module provided in the embodiment of the present application includes a first filter 501, a second filter 502, a first switch unit 503, a second switch unit 504 and a first antenna unit 505. The connection relationship between the components can be as described above. Figure 5 As shown, no further description is given here.

[0112] The first filter 501 is used to filter signals in a first frequency band, where the first frequency band is the frequency band used by the RF module when transmitting signals in the frequency division duplex mode FDD; the second filter 502 is used to filter signals in a second frequency band, where the second frequency band is the frequency band used by the RF module when transmitting signals in the time division duplex mode TDD; the second switch unit 504 is used to connect the first end of the second switch unit 504 with the second end of the second switch unit 504 when the second frequency band is required to be used when processing the third service; the first switch unit 503 is used to connect the first end of the first switch unit 503 with the third end of the first switch unit 503, and connect the second end of the first switch unit 503 with the third end of the first switch unit 503 when the first frequency band and the second frequency band are required to be used when processing the third service, so that the reception and / or transmission of the signal in the first frequency band in the third service is realized through the first filter 501 and the first antenna unit 505, and the reception and / or transmission of the signal in the second frequency band in the third service is realized through the second filter 502 and the first antenna unit 505.

[0113] The third service may be any one of services such as downloading data, making or receiving calls, playing videos, and running games, and the embodiments of the present application do not limit this. To realize the third service, the first frequency band and the second frequency band work simultaneously, and in the sending time slot of the second frequency band and the receiving time slot of the second frequency band, the signal of the first frequency band and the signal of the second frequency band are both sent or received by the first switch unit 503 using the first antenna. In this way, when switching from the sending time slot of the signal of the second frequency band to the receiving time slot, or from the receiving time slot of the signal of the second frequency band to the sending time slot, the first switch unit 503 is in a double-open mode, and the probability of the impedance at the first switch unit 503 changing is small, which has a small impact on the continuity of the gain and phase of the signal of the first frequency band, and thus has a small impact on the throughput rate of the signal of the first frequency band, which is conducive to reducing the impact on the realization of the service.

[0114] The above-mentioned signal acquisition unit and signal separation unit are also applicable when implementing the third service, and will not be repeated here. In some implementations, the RF module may also include a fourth switch unit and a second antenna unit. The connection relationship between the fourth switch unit and the second antenna unit is as above, and will not be repeated here. The fourth switch unit is in an off state when the first frequency band and the second frequency band need to be used when processing the third service. In this way, the fourth switch unit is in an off state, so that the second antenna unit and the second filter are not in a connected state, and the first antenna unit 503 and the second filter are in a connected state, which is conducive to the signal of the second frequency band not being sent by the second antenna unit, but being sent by the first antenna unit.

[0115] In some scenarios, the third service is implemented by the first SIM card in the electronic device where the RF module is located, that is, a SIM card in the electronic device implements the third service, that is, it is in the ENDC scenario. The present application also provides an electronic device, which may include a control unit, a transceiver and the RF module in the above embodiment, and the control unit is used to control the transceiver to receive data from each antenna unit in the electronic device through the RF module, and to send data through each antenna unit in the electronic device. For example, in the above Figure 6 In the example shown, the control unit may be an AP chip, the transceiver may be a transceiver 202, and the radio frequency module may include an MHB radio frequency module 203 and Figure 6 The embodiments of the present application also provide a chip for realizing the functions of the radio frequency module in the above embodiments.

[0116] The embodiment of the present application also provides a computer program product including one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a server or data center that includes one or more available media integrated. For example, the available medium may include a magnetic medium (e.g., a floppy disk, a hard disk or a tape), an optical medium (e.g., a digital versatile disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.

[0117] The present application also provides a computer-readable storage medium. The methods described in the above embodiments can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. Computer-readable media may include computer storage media and communication media, and may also include any medium that can transfer a computer program from one place to another. The storage medium may be any target medium that can be accessed by a computer.

[0118] As a possible design, the computer readable medium may include a compact disc read-only memory (CD-ROM), RAM, ROM, EEPROM or other optical disc storage; the computer readable medium may include a magnetic disk storage or other magnetic disk storage device. Moreover, any connection line may also be appropriately referred to as a computer readable medium. For example, if the software is transmitted from a website, server or other remote source using a coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, radio and microwave, the coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, radio and microwave are included in the definition of medium. Disk and disc as used herein include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc, where disks usually reproduce data magnetically, while discs reproduce data optically using lasers.

[0119] The embodiments of the present application are 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 processing unit 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 processing unit 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.

Claims

1. A radio frequency module, characterized in that: The RF module includes a first filter, a second filter, a first switch unit, a second switch unit and a first antenna unit; the first filter is connected to a first end of the first switch unit, the second filter is connected to a second end of the first switch unit, a third end of the first switch unit is connected to the first antenna unit, a first end of the second switch unit is connected to a transceiver, and a second end of the second switch unit is connected to the second filter; The first filter is used to filter signals in a first frequency band, where the first frequency band is a frequency band used by the radio frequency module when transmitting signals in a frequency division duplex mode FDD; The second filter is used to filter signals in a second frequency band, where the second frequency band is a frequency band used by the radio frequency module when transmitting signals in a time division duplex mode TDD; The first switch unit is configured to connect the first end of the first switch unit with the third end of the first switch unit when the first frequency band needs to be used when processing the first service, so that reception and / or transmission of the signal in the first frequency band is realized through the first filter and the first antenna unit; The first switch unit is further used for connecting the second end of the first switch unit with the third end of the first switch unit when a second service is to be processed simultaneously during the processing of the first service and the second frequency band needs to be used when processing the second service; The second switch unit is used to connect the first end of the second switch unit with the second end of the second switch unit, so that the reception and / or transmission of the signal in the first frequency band is realized through the first filter and the first antenna unit, and the reception and / or transmission of the signal in the second frequency band is realized through the second filter and the first antenna unit; The RF module also includes a signal acquisition unit, which is connected to the input end of a signal separation unit. The signal separation unit is used to separate the signal of the first frequency band and the signal of the second frequency band. The first output end of the signal separation unit is used to output the signal of the first frequency band, and the second output end of the signal separation unit is used to output the signal of the second frequency band.

2. The radio frequency module according to claim 1, characterized in that: The first output end of the signal separation unit is connected to the first end of the third switch unit, the second output end of the signal separation unit is connected to the second end of the third switch unit, and the third end of the third switch unit is connected to the transceiver; The signal acquisition unit is used to acquire the signal sent by the first antenna unit; The third switch unit is used to connect the first output end of the signal separation unit with the transceiver when power detection of the signal in the first frequency band is required, and to connect the second output end of the signal separation unit with the transceiver when power detection of the signal in the second frequency band is required.

3. The radio frequency module according to claim 2, characterized in that: The signal separation unit includes a bandpass filter and a bandstop filter. The bandpass filter is used to filter the collected signal sent by the first antenna unit to obtain a signal of the second frequency band. The bandstop filter is used to filter the collected signal sent by the first antenna unit to obtain a signal of the first frequency band.

4. The radio frequency module according to claim 3, characterized in that: The bandpass filter includes a first inductor, a second inductor, a third inductor, a fourth inductor, a first capacitor, a second capacitor, a third capacitor and a fourth capacitor; the first end of the first inductor is the input end of the signal separation unit, the second end of the first inductor is connected to the first end of the first capacitor, the second end of the first capacitor is connected to the first end of the second inductor, and the second end of the second inductor is connected to the first end of the second capacitor; the second end of the first capacitor is also connected to the first end of the third inductor, and the second end of the third inductor is grounded; the first end of the second inductor is also connected to the first end of the third capacitor, and the second end of the third capacitor is grounded; the second end of the second capacitor is connected to the first end of the fourth inductor, and the second end of the fourth inductor is grounded; the second end of the second capacitor is also connected to the first end of the fourth capacitor, and the second end of the fourth capacitor is grounded; the second end of the second capacitor is the second output end of the signal separation unit.

5. The radio frequency module according to claim 3 or 4, characterized in that: The band-stop filter includes a fifth inductor, a sixth inductor, a seventh inductor, an eighth inductor, a fifth capacitor, a sixth capacitor, a seventh capacitor and an eighth capacitor; the first end of the fifth inductor is the input end of the signal separation unit, the second end of the fifth inductor is connected to the first end of the sixth inductor, the first end of the fifth inductor is also connected to the first end of the fifth capacitor, the second end of the fifth inductor is also connected to the second end of the fifth capacitor, the second end of the fifth inductor is also connected to the first end of the seventh inductor, the second end of the seventh inductor is connected to the first end of the seventh capacitor, and the second end of the seventh capacitor is grounded; the first end of the sixth inductor is also connected to the first end of the sixth capacitor, the second end of the sixth inductor is also connected to the second end of the sixth capacitor, the second end of the sixth inductor is also connected to the first end of the eighth inductor, the second end of the eighth inductor is connected to the first end of the eighth capacitor, and the second end of the eighth capacitor is grounded; the second end of the sixth inductor is the first output end of the signal separation unit.

6. The radio frequency module according to any one of claims 1 to 4, characterized in that: The radio frequency module further includes a fourth switch unit and a second antenna unit, wherein a first end of the fourth switch unit is connected to the first filter, and a second end of the fourth switch unit is connected to the second antenna unit; The fourth switch unit is used to be in an off state when a second service needs to be processed simultaneously during the processing of the first service and the second frequency band needs to be used when processing the second service.

7. The radio frequency module according to any one of claims 1 to 4, characterized in that: The radio frequency module further includes a fifth switch unit, a first end of the fifth switch unit is connected to the transceiver, and a second end of the fifth switch unit is connected to the first filter; The fifth switch unit is used to connect the first end of the fifth switch unit with the second end of the fifth switch unit when the first frequency band needs to be used when processing the first service, so that the reception and / or transmission of the signal in the first frequency band is realized through the first filter and the first antenna unit.

8. The radio frequency module according to any one of claims 1 to 4, characterized in that: The first service and the second service are implemented by a first user identity card SIM card in the electronic device where the radio frequency module is located.

9. The radio frequency module according to any one of claims 1 to 4, characterized in that: The first service is implemented by a first SIM card in the electronic device where the radio frequency module is located, and the second service is implemented by a second SIM card in the electronic device where the radio frequency module is located.

10. A radio frequency module, characterized in that: The RF module includes a first filter, a second filter, a first switch unit, a second switch unit and a first antenna unit; the first filter is connected to a first end of the first switch unit, the second filter is connected to a second end of the first switch unit, a third end of the first switch unit is connected to the first antenna unit, a first end of the second switch unit is connected to a transceiver, and a second end of the second switch unit is connected to the second filter; The first filter is used to filter signals in a first frequency band, where the first frequency band is a frequency band used by the radio frequency module when transmitting signals in a frequency division duplex mode FDD; The second filter is used to filter signals in a second frequency band, where the second frequency band is a frequency band used by the radio frequency module when transmitting signals in a time division duplex mode TDD; The second switch unit is configured to connect the first end of the second switch unit with the second end of the second switch unit when the second frequency band needs to be used when processing a third service; The first switch unit is used to connect the first end of the first switch unit with the third end of the first switch unit, and connect the second end of the first switch unit with the third end of the first switch unit when the first frequency band and the second frequency band need to be used when processing a third service, so that reception and / or transmission of the signal of the first frequency band in the third service is realized through the first filter and the first antenna unit, and reception and / or transmission of the signal of the second frequency band in the third service is realized through the second filter and the first antenna unit; The RF module also includes a signal acquisition unit, which is connected to the input end of a signal separation unit. The signal separation unit is used to separate the signal of the first frequency band and the signal of the second frequency band. The first output end of the signal separation unit is used to output the signal of the first frequency band, and the second output end of the signal separation unit is used to output the signal of the second frequency band.

11. The radio frequency module according to claim 10, characterized in that: The first output end of the signal separation unit is connected to the first end of the third switch unit, the second output end of the signal separation unit is connected to the second end of the third switch unit, and the third end of the third switch unit is connected to the transceiver; The signal acquisition unit is used to acquire the signal sent by the first antenna unit; The third switch unit is used to connect the first output end of the signal separation unit with the transceiver when power detection of the signal in the first frequency band is required, and to connect the second output end of the signal separation unit with the transceiver when power detection of the signal in the second frequency band is required.

12. The radio frequency module according to claim 10 or 11, characterized in that: The radio frequency module further includes a fourth switch unit and a second antenna unit, wherein a first end of the fourth switch unit is connected to the first filter, and a second end of the fourth switch unit is connected to the second antenna unit; The fourth switch unit is used to be in an off state when the first frequency band and the second frequency band need to be used to process the third service.

13. The radio frequency module according to any one of claims 10 to 11, characterized in that: The third service is implemented by the first SIM card in the electronic device where the radio frequency module is located.

14. An electronic device, characterized in that: include: A control unit, a transceiver, and a radio frequency module as described in any one of claims 1 to 9 or a radio frequency module as described in any one of claims 10 to 12, wherein the control unit is used to control the transceiver to receive data from each antenna unit in the electronic device through the radio frequency module, and to send data through each antenna unit in the electronic device.

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