Radio frequency module and electronic equipment

Abstract

The invention relates to a radio frequency module and electronic equipment, the radio frequency module is used for supporting transceiving processing of signals of a first communication frequency band and a second communication frequency band, and the first communication frequency band and the second communication frequency band are overlapped in a frequency band range of a first sub-frequency band; the radio frequency module comprises a radio frequency transmitting link and a radio frequency receiving link; under the condition that the radio frequency transmitting link is used for supporting transmitting processing of a transmitting signal, the radio frequency receiving link is used for supporting receiving processing of a first receiving signal, and a first filter in the radio frequency receiving link is used for filtering the first receiving signal; wherein the transmitting signal comprises a signal of a first sub-band of the first communication band, and the first receiving signal comprises a signal of a first sub-band of the second communication band. By adopting the radio frequency module, the communication receiving performance of the electronic equipment can be improved.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a radio frequency module and electronic device. Background Technology

[0002] To achieve high-speed communication services, carrier aggregation technology, which combines the bandwidth of multiple frequency bands, has been proposed. Electronic devices using carrier aggregation technology need to receive and transmit multiple component carriers during communication. Each component carrier belongs to a different communication frequency band, but there may be overlapping frequency bands.

[0003] Currently, electronic devices receive component carriers based on single-RX receiving technology. However, when transmitting component carriers, if the frequency band of the component carrier to be received overlaps with the frequency band of the transmitted component carrier, the filtering components used to process the component carrier will be unable to process the received component carrier, affecting the receiving performance of the electronic device and thus reducing the communication quality of the electronic device. Summary of the Invention

[0004] Therefore, it is necessary to provide a radio frequency module and an electronic device.

[0005] In a first aspect, this application provides a radio frequency module for supporting the transmission and reception of signals in a first communication frequency band and a second communication frequency band, wherein the frequency ranges of the first communication frequency band and the second communication frequency band overlap in a first sub-frequency band.

[0006] The radio frequency module includes a radio frequency transmit link and a radio frequency receive link;

[0007] In the case where the radio frequency (RF) transmit link is used to support the transmission processing of the transmitted signal, the RF receive link is used to support the reception processing of the first received signal, and the first received signal is filtered using the first filter in the RF receive link.

[0008] The transmitted signal includes signals from the first sub-band of the first communication frequency band, and the received signal includes signals from the first sub-band of the second communication frequency band.

[0009] Secondly, this application also provides an electronic device, including the radio frequency module as described above.

[0010] The aforementioned RF module and electronic device, by setting up RF transmit and receive links, can simultaneously support the transmission processing of transmitted signals via the RF transmit link and the reception processing of first received signals via the RF receive link. The first and second communication frequency bands overlap in the frequency range of the first sub-band. That is, transmitted and received signals within the first sub-band can be transmitted and received simultaneously. Therefore, in carrier aggregation communication, even if the transmitted and received component carriers both belong to the overlapping first sub-band, the RF module can still achieve signal transmission and reception, thereby ensuring the receiving performance of the electronic device and improving its communication quality. Attached Figure Description

[0011] Figure 1 This is one of the structural schematic diagrams of an electronic device receiver configuration according to an embodiment;

[0012] Figure 2 A second schematic diagram illustrating the configuration of an electronic device receiver according to one embodiment;

[0013] Figure 3 This is one of the structural schematic diagrams of a radio frequency module according to an embodiment;

[0014] Figure 4 This is a schematic diagram of the frequency band range of one embodiment;

[0015] Figure 5 This is a second schematic diagram of the structure of a radio frequency module according to one embodiment;

[0016] Figure 6 This is the third schematic diagram of the structure of an embodiment of a radio frequency module;

[0017] Figure 7 This is the fourth schematic diagram of the structure of an embodiment of a radio frequency module;

[0018] Figure 8 This is the fifth schematic diagram of the structure of an embodiment of a radio frequency module;

[0019] Figure 9 This is the sixth schematic diagram of the structure of an embodiment of a radio frequency module;

[0020] Figure 10 This is the seventh schematic diagram of the structure of an embodiment of a radio frequency module;

[0021] Figure 11 This is the eighth schematic diagram of the structure of an embodiment of a radio frequency module;

[0022] Figure 12 This is a schematic diagram of a radio frequency module according to one embodiment;

[0023] Figure 13This is the ninth schematic diagram of the structure of an embodiment of a radio frequency module;

[0024] Figure 14 This is a schematic diagram of the structure of a radio frequency module according to an embodiment;

[0025] Figure 15 This is an internal structural diagram of an electronic device according to an embodiment.

[0026] Explanation of reference numerals in the attached figures:

[0027] RF transmit link: 100; RF receive link: 200; First filter: 210; Transceiver: 300; Second filter: 220; Third filter: 230; Fourth filter: 240; Fifth filter: 250; Duplexer: 110; First antenna: 120; First low noise amplifier: 130; Power amplifier: 140; First duplexer: 110A; Second duplexer: 110B; Second low noise amplifier: 260. Detailed Implementation

[0028] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0029] This application provides a radio frequency (RF) module and an electronic device. The RF module supports the communication functions of the electronic device. The electronic device can be, but is not limited to, various personal computers, laptops, smartphones, tablets, IoT devices, and portable wearable devices. IoT devices can include smart speakers, smart TVs, smart air conditioners, smart in-vehicle devices, smart cars, etc. Portable wearable devices can include smartwatches, smart bracelets, head-mounted devices, etc. The electronic device can communicate based on carrier aggregation technology. The electronic device can operate in multiple frequency bands, not all of which are illustrated here.

[0030] With the development of communication technology, spectrum resources are becoming increasingly scarce, and the small bandwidth of a single frequency band cannot provide high-speed communication services. Therefore, carrier aggregation technology, which combines multiple frequency bands with small bandwidths (CA), is a good solution. However, combining multiple frequency bands consumes receiver resources in electronic devices, for example... Figure 1As shown, multiple receivers are needed in electronic devices to receive signals from different frequency bands, but the hardware cost of setting up multiple receivers is relatively high. To reduce hardware costs, single-receiver technology has emerged. Single-receiver technology refers to a low-cost, low-power implementation that uses only one RF receiving link in multi-band or multi-carrier aggregation (CA) scenarios, receiving signals from different frequency bands alternately or selectively through time division, frequency division, or software scheduling. Therefore, electronic devices can utilize single-receiver technology to set up a single receiver (or RF receiving link) to meet the signal transmission and reception needs of multiple frequency band combinations, such as... Figure 2 As shown, signals from all three frequency bands can be transmitted and received using only the corresponding RF receiving link of the receiver, enabling multiple frequency bands to share a single receiver.

[0031] Electronic devices using carrier aggregation technology need to transmit and receive multiple component carriers during communication, and these component carriers may operate in different frequency bands. Currently, electronic devices receive component carriers based on single-receiver technology. However, in the case of transmitted component carriers, if the frequency band of the component carrier to be received overlaps with that of the transmitted component carrier, the filtering components used to process the component carriers may be unable to process the received component carrier, affecting the receiving performance of the electronic device and thus reducing the communication quality of the electronic device.

[0032] This application provides a radio frequency module that can support the transmission and reception of the transmitted and received signals when they are in overlapping frequency bands, thus ensuring the reception performance of the electronic device and ensuring the reliable communication performance of the electronic device.

[0033] Figure 3 This is one of the structural schematic diagrams of an embodiment of an RF module, with reference to... Figure 3 The radio frequency module includes radio frequency transmit link 100 and radio frequency receive link 200.

[0034] The radio frequency module is used to support the transmission and reception of signals in the first and second communication frequency bands. When the radio frequency transmission link 100 is used to support the transmission processing of the transmitted signal, the radio frequency reception link 200 is used to support the reception processing of the first received signal, and the first filter 210 in the radio frequency reception link 200 is used to filter the first received signal.

[0035] The transmitted signal includes signals from a first sub-band of a first communication frequency band, and the received signal includes signals from a first sub-band of a second communication frequency band. Furthermore, the frequency ranges of the first and second communication frequency bands overlap in the first sub-band.

[0036] The radio frequency (RF) transmission link 100 is used to support the transmission processing of transmitted signals. The RF transmission link 100 can be used to process signals in a first communication frequency band or a second communication frequency band. That is, the transmitted signal can be a signal in a first sub-band of the first communication frequency band that the electronic device needs to transmit, or it can be a signal in another sub-band of the first communication frequency band that the electronic device needs to transmit, or it can be a signal in the second communication frequency band that the electronic device needs to transmit.

[0037] The radio frequency (RF) receiving link 200 is used to support the reception and processing of received signals. Specifically, the RF receiving link 200 can be used to receive and process signals from a first communication frequency band or a second communication frequency band.

[0038] The first communication frequency band includes a transmitting frequency band and a receiving frequency band, and the second communication frequency band also includes a transmitting frequency band and a receiving frequency band. A portion of a sub-frequency band within the transmitting frequency band of the first communication frequency band overlaps with a portion of a sub-frequency band within the receiving frequency band of the second communication frequency band; that is, the frequency ranges of the first and second communication frequency bands overlap within the first sub-frequency band.

[0039] In related technologies, such as the single technology mentioned above, a single radio frequency (RF) link is set up, through which both reception and transmission pass. When this single RF link is used to support the transmission processing of the transmission signal of the first sub-band of the first communication frequency band, the filtering device in this RF link operates throughout the entire first communication frequency band. When it is necessary to receive the first received signal of the first sub-band of the second communication frequency band, since the first sub-band of the second communication frequency band belongs to the second communication frequency band, the filtering device cannot be used to support the filtering processing of the first received signal.

[0040] In this embodiment, a radio frequency (RF) receiving link 200 is provided that can be used independently to support the reception and processing of the first received signal. This RF receiving link 200 includes a first filter 210 operating in a first sub-band of the second communication frequency band. Furthermore, when the RF transmitting link 100 is used to support the transmission processing of the transmitted signal, the electronic device can utilize this RF receiving link 200 to support the reception processing of the first received signal, thereby enabling the first filter 210 to filter the first received signal. This ensures the reception quality of the first received signal, thereby improving the overall signal reception performance of the electronic device.

[0041] The radio frequency transmission link 100 may also include filtering devices for filtering the transmitted signal.

[0042] Electronic devices can transmit and receive component carrier signals of a second communication frequency band and a first communication frequency band during communication based on carrier aggregation technology. In this process, signal transmission and reception are performed based on the above scheme when transmitting component carrier signals of the first sub-band of the first communication frequency band and receiving component carrier signals of the first sub-band of the second communication frequency band. Furthermore, it is understood that during this process, the component carrier signals of the second communication frequency band can be transmitted in a time-division multiplexing manner, and the component carrier signals of the first communication frequency band can also be received in a time-division multiplexing manner. Optionally, electronic devices can also perform signal transmission and reception based on the above scheme during communication based on other technologies, when there is both transmission of signals of the first sub-band of the first communication frequency band and reception of signals of the first sub-band of the second communication frequency band.

[0043] Besides carrier aggregation for two communication frequency bands, carrier aggregation for multiple communication frequency bands is also possible. Multiple overlapping frequency band ranges may exist. Therefore, in this embodiment, the aforementioned first and second communication frequency bands can refer to any two communication frequency bands that overlap in their transmitting and receiving frequencies. Correspondingly, the first sub-frequency band represents the overlapping frequency band range of these two frequency bands. Correspondingly, if multiple overlapping frequency band ranges exist, the RF receiving link 200 may include multiple first filters 210, each operating in a different first sub-frequency band, and each first sub-frequency band representing a different overlapping frequency band range. Thus, when the RF transmitting link 100 is used to support the transmission processing of signals from the first sub-frequency band, the RF receiving link 200 can be used to support the reception processing of received signals from the first sub-frequency band, and the corresponding first filter 210 can be used to filter the received signals.

[0044] In this embodiment, for example, in the case of carrier aggregation of two frequency bands, the first communication frequency band can be the n8 frequency band, and the second communication frequency band can be the n5 frequency band. For example... Figure 4 The diagram illustrates the frequency ranges of bands n8 and n5. It can be seen that the transmit frequency band of band n8 and the receive frequency band of band n5 overlap between 880MHz and 894MHz. Other overlapping frequency bands also exist, but these are not fully illustrated here. For ease of understanding, the following explanation uses the aggregation of two frequency bands as an example.

[0045] Among them, such as Figure 3As shown, the RF module also includes a transceiver 300. The RF transmit link 100 includes an antenna and is connected to the transceiver 300. The transceiver 300 outputs a transmit signal to the RF transmit link 100 for transmission processing and then transmits it via the antenna. The RF receive link 200 is also connected to the transceiver 300. The RF receive link 200 may also include an antenna. The first received signal received by the antenna enters the RF receive link 200 for reception processing, and the processed signal is transmitted to the transceiver 300.

[0046] Optionally, the RF transmitting link 100 may also include other RF devices, such as power amplifiers, low-noise amplifiers, and RF switches. The RF receiving link 200 may also include low-noise amplifiers and RF switches, etc., and this application does not impose any limitations on this.

[0047] The aforementioned radio frequency (RF) module and electronic device, wherein the RF module supports the transmission and reception of signals in a first communication frequency band and a second communication frequency band, the first and second communication frequency bands overlapping in the frequency range of a first sub-frequency band; the RF module includes an RF transmission link 100 and an RF reception link 200; when the RF transmission link 100 supports the transmission processing of the transmitted signal, the RF reception link 200 supports the reception processing of the first received signal, and uses a first filter 210 in the RF reception link 200 to filter the first received signal; wherein the transmitted signal includes signals from the first sub-frequency band of the first communication frequency band, and the first received signal includes signals from the first sub-frequency band of the second communication frequency band. By setting up the RF transmission link 100 and the RF reception link 200, the RF transmission link 100 can support the transmission processing of the transmitted signal while the RF reception link 200 supports the reception processing of the first received signal. The first and second communication frequency bands overlap in the frequency range of the first sub-frequency band. That is, the transmitted signal and the first received signal in the first sub-frequency band can be transmitted and received simultaneously. Therefore, in the communication process of carrier aggregation technology, even if the transmitted component carrier and the received component carrier both belong to the overlapping first sub-frequency band, the radio frequency module can still be used to realize signal transmission and reception, thereby ensuring the receiving performance of electronic devices and improving the communication quality of electronic devices.

[0048] In some embodiments, the number of radio frequency receiving links 200 is multiple; the first received signal is multiplexed. Figure 5 This is a second schematic diagram of the structure of an RF module according to an embodiment, with reference to... Figure 5 Two radio frequency receiving links 200 are shown. More radio frequency receiving links 200 can be set as needed; this embodiment does not limit this.

[0049] Multiple radio frequency receiving links 200 are used to support main set reception processing and diversity reception processing of multiple first received signals. And / or, multiple radio frequency receiving links 200 are used to support MIMO (Multipie Input Multiple Output) reception processing of multiple first received signals.

[0050] Each RF receiving link 200 is equipped with a first filter 210.

[0051] In main diversity reception, the multiple first received signals include a first main received signal and a first diversity received signal. For example, during the transmission of signals in the first sub-band of the frequency band supported by the RF transmit link 100, multiple RF receive links 200 are used to support the first main received signal and the first diversity received signal of the first sub-band of the frequency band, and a first filter 210 in each RF receive link 200 is used to filter the corresponding signals. At this time, since at least two RF receive links 200 are set, one RF receive link 200 can be used to support the reception processing of the first main received signal of the first sub-band of the n5 frequency band, and another RF receive link 200 can be used to support the reception processing of the first diversity received signal of the first sub-band of the n5 frequency band.

[0052] In this embodiment, each RF receiving link 200 is connected to a receiver, and each RF receiving link 200 is equipped with a corresponding antenna. Optionally, each RF receiving link 200 has the same structure.

[0053] In MIMO reception, multiple first received signals include two first MIMO received signals. For example, during the transmission of signals in the first sub-band of the frequency band supported by the RF transmit link 100, multiple RF receive links 200 are used to support the two first MIMO received signals in the first sub-band of the frequency band, and the first filter 210 in each RF receive link 200 is used to filter the corresponding signals. At this time, since at least two RF receive links 200 are set, one RF receive link 200 can be used to support the reception processing of one first MIMO received signal.

[0054] In this way, multiple RF receiving links 200 can be used to achieve main diversity reception and MIMO reception, thereby improving the flexibility of electronic devices in receiving signals and ensuring high reception performance in various receiving scenarios.

[0055] In some embodiments, the radio frequency receiving link 200 can also be used to support the receiving processing of the second received signal and to filter the second received signal using the second filter 220 in the radio frequency receiving link 200.

[0056] The second received signal includes the signal of the second sub-band of the second communication frequency band, and the second sub-band of the second communication frequency band does not overlap with the first communication frequency band.

[0057] Taking the above frequency band and n8 frequency band as examples, the second sub-frequency band of the second communication frequency band can be the frequency band range other than the first sub-frequency band in the receiving frequency band of n5 frequency band, such as the range of 869MHz to 880MHz.

[0058] The radio frequency receiving link 200 is also equipped with a second filter 220, which can operate in the second sub-band of the second communication frequency band.

[0059] That is, in addition to the scenario described above where a first received signal of the first sub-band of the second communication band is received while transmitting a signal from the first sub-band of the first communication band, there may also be a scenario where a second received signal of the second sub-band of the second communication band is received while transmitting a signal from the first sub-band of the first communication band. In this case, the electronic device also uses the RF transmission link 100 to support the transmission processing of the transmitted signal and the RF reception link 200 to support the reception processing of the second received signal. At this time, the second received signal is filtered using the second filter 220 in the RF reception link 200.

[0060] Optionally, the second received signal is multiplexed, and multiple radio frequency receiving links 200 are used to support main set reception processing and diversity reception processing of the multiple second received signals. And / or, multiple radio frequency receiving links 200 are used to support MIMO reception processing of the multiple second received signals. The MIMO reception processing, main set reception processing, and diversity reception processing of the second received signal are similar to those described above for the reception processing, main set reception processing, and diversity reception processing of the first received signal.

[0061] In some embodiments, the radio frequency receiving link 200 can also be used to support the receiving and processing of a third received signal, and to filter the third received signal using a third filter 230 in the radio frequency receiving link 200.

[0062] The third received signal includes the signal of the third sub-band of the first communication frequency band, and the third sub-band of the first communication frequency band does not overlap with the first sub-band of the first communication frequency band.

[0063] The third sub-band of the first communication frequency band can refer to the receiving frequency band of the first communication frequency band. Taking the above frequency band and the n8 frequency band as examples, the third sub-band of the first communication frequency band can be the entire receiving frequency band of the n8 frequency band, that is, the range of 925MHz to 960MHz.

[0064] The radio frequency receiving link 200 is also equipped with a third filter 230, which can operate in the third sub-band of the first communication frequency band.

[0065] That is, in addition to the scenario described above where a first received signal from the first sub-band of the second communication band is received while transmitting a signal from the first sub-band of the first communication band, there may also be a scenario where a third received signal from the third sub-band of the first communication band is received while transmitting a signal from the first sub-band of the first communication band. In this case, the electronic device also uses the RF transmit link 100 to support the transmission processing of the transmitted signal and the RF receive link 200 to support the reception processing of the third received signal. At this time, the second received signal is filtered using the third filter 230 in the RF receive link 200.

[0066] In some embodiments, the radio frequency transmission link 100 can be used not only to support the transmission processing of signals in a first sub-band of the first communication frequency band, but also to support the transmission processing of signals in other sub-bands of the first communication frequency band, and further to support the transmission processing of signals in the transmission band of the second communication frequency band. In each transmission case, signal reception refers to the description above of received signals such as the first received signal, the second received signal, and the third received signal.

[0067] This application embodiment includes a filter device in the RF receiving link 200 to filter received signals from different frequency bands. This not only ensures effective filtering of the first received signal from the first sub-band of the second communication frequency band, but also allows for filtering of received signals from other frequency bands. This expands the application frequency range of the RF receiving link 200, increases its flexibility, and provides multiple receiving paths for various received signals, ensuring the reliability of electronic devices receiving signals from different frequency bands.

[0068] In some embodiments, the first filter 210, the second filter 220, and the third filter 230 are integrated into a continuous narrowband filter; the first filter 210, the second filter 220, and the third filter 230 share the input and output terminals of the continuous narrowband filter. Figure 6 This is the third schematic diagram of the structure of an embodiment of the radio frequency module, with reference to... Figure 6 The diagram illustrates a series of narrowband filters in two RF receive links 200. The series narrowband filters are integrated by a first filter 210, a second filter 220, and a third filter 230.

[0069] Understandable Figure 6The continuous narrowband filter in the text is applied to carrier aggregation of two frequency bands. For carrier aggregation of more frequency bands, the continuous narrowband filter includes filters that filter the received signals of overlapping frequency bands and filters that filter the received signals of non-overlapping frequency bands. For example, for carrier aggregation of three frequency bands (band 1, band 2, and band 3), taking the overlapping frequency bands of bands 1 and 2, and bands 2 and 3, as an example, the corresponding reference... Figure 7 The fourth schematic diagram of the RF module structure of one embodiment is shown. The continuous narrowband filter includes five filters: the first filter 210 is used to filter the received signals in the non-overlapping frequency bands of frequency band 1; the second filter 220 is used to filter the received signals in the overlapping frequency bands of frequency bands 1 and 2; the third filter 230 is used to filter the received signals in the non-overlapping frequency bands of frequency band 2; the fourth filter 240 is used to filter the received signals in the overlapping frequency bands of frequency bands 2 and 3; and the fifth filter 250 is used to filter the received signals in the non-overlapping frequency bands of frequency band 3. The description of carrier aggregation in other frequency bands is similar to that above and will not be repeated.

[0070] In some embodiments, Figure 8 The fifth schematic diagram shows the structure of a radio frequency module according to one embodiment. The radio frequency transmission link 100 includes a duplexer 110, a first antenna 120, and a first low-noise amplifier 130. The duplexer 110 is connected between the first antenna 120 and the first low-noise amplifier 130. Optionally, the radio frequency transmission link 100 also includes a power amplifier 140.

[0071] The duplexer 110 is used to filter the transmitted signal and transmit the filtered transmitted signal to the first antenna 120 for transmission.

[0072] In this embodiment, the transceiver 300 outputs a transmit signal to the power amplifier 140. The power amplifier 140 amplifies the transmit signal and then transmits it to the duplexer 110 for filtering. The filtered transmit signal is then transmitted to the first antenna 120 for transmission. Optionally, an RF switch is provided between the power amplifier 140 and the duplexer 110.

[0073] The duplexer 110 is also used to filter the signal received by the first antenna 120 and transmit the filtered signal to the first low-noise amplifier 130.

[0074] In this embodiment, the RF transmission link 100 can also be used for signal reception. The signal received by the first antenna 120 can be transmitted to the duplexer 110 for filtering, and then the filtered received signal is transmitted to the first low-noise amplifier 130 for amplification. The amplified received signal is further transmitted to the transceiver 300. Optionally, an RF switch can be provided between the duplexer 110 and the first antenna 120.

[0075] The radio frequency receiving link 200 is used to support the reception processing of a first received signal from a first sub-band of the second communication frequency band. Therefore, the radio frequency transmitting link 100 can support the reception processing of received signals from other frequency bands. For example, the radio frequency transmitting link 100 can be used to support the reception processing of received signals from a second sub-band of the second communication frequency band and a third sub-band of the first communication frequency band.

[0076] In this embodiment, both the first antenna 120 and the antennas in the RF receiving link 200 can include antennas with resonant elements formed by at least one of the following antenna structures: array antenna structure, loop antenna structure, patch antenna structure, slot antenna structure, spiral antenna structure, strip antenna, monopole antenna, and dipole antenna. Different types of antennas can be used for different frequency bands and combinations of frequency bands. In this embodiment, the type of antenna is not further limited.

[0077] In this embodiment of the application, the radio frequency transmission link 100 can also be used to receive signals, thereby expanding the receiving capability of the electronic device.

[0078] In some embodiments, Figure 9 The diagram shows a sixth schematic of the structure of an RF module according to one embodiment. The duplexer 110 includes a first duplexer A and a second duplexer B. The transmitted signals include a first transmitted signal in a first communication frequency band and a second transmitted signal in a second communication frequency band.

[0079] The radio frequency transmission link 100 is used to support the transmission processing of the first transmission signal and to filter the first transmission signal of the first communication frequency band using the first duplexer A. That is, the first transmission signal of the first communication frequency band is amplified by the power amplifier 140, filtered by the first duplexer A, and then further transmitted to the first antenna 120 for transmission.

[0080] And / or, the radio frequency transmission link 100 is used to support the transmission processing of the second transmitted signal and to filter the second transmitted signal using the second duplexer 110B. That is, the second transmitted signal of the second communication frequency band is amplified by the power amplifier 140, filtered by the second duplexer 110B, and then further transmitted to the first antenna 120 for transmission.

[0081] The duplexer 110 is a device capable of simultaneously filtering both transmitted and received signals. In some embodiments, when the RF transmit link 100 processes the second transmitted signal, the RF transmit link 100 also supports the processing of the second received signal and utilizes the second duplexer 110B to filter the second received signal. Thus, the RF transmit link 100 can be used for transmitting and receiving signals in the second communication frequency band.

[0082] And / or, when the RF transmit link 100 performs transmit processing on the first transmit signal, the RF transmit link 100 is used to support receive processing on the third receive signal, and the third receive signal is filtered using the first duplexer 110A. In this way, the RF transmit link 100 can be used to transmit and receive signals in the second communication frequency band.

[0083] In some embodiments, the radio frequency transmit link 100 and one of the radio frequency receive links 200 are used to support main set reception processing and diversity reception processing of second received signals from multiple second sub-bands of the second communication frequency band. And / or, the radio frequency transmit link 100 and one radio frequency receive link 200 are used to support MIMO reception processing of multiple second received signals.

[0084] In some embodiments, the radio frequency transmit link 100 and one of the radio frequency receive links 200 are used to support main reception processing and diversity reception processing of third received signals from multiple third sub-bands of the first communication frequency band. And / or, the radio frequency transmit link 100 and one radio frequency receive link 200 are used to support MIMO reception processing of multiple third received signals.

[0085] In this way, multiple received signals from different frequency bands can be flexibly processed using the RF transmit link 100 and the RF receive link 200, improving the signal reception flexibility of electronic devices.

[0086] In one embodiment, a low-noise amplifier is also provided in each RF receiving link 200 to improve RF reception quality. Specifically, Figure 10 The seventh schematic diagram of the structure of an RF module of one embodiment is shown. Each RF receiving link 200 also includes a second low-noise amplifier 260 connected to the first filter 210, the second filter 220 and the third filter 230.

[0087] The second low-noise amplifier 260 is used to amplify the received signals output from the first filter 210, the second filter 220 and / or the third filter 230.

[0088] In this embodiment, any received signal is received by the antenna and then enters a continuous narrowband filter. After being filtered by the corresponding filter in the continuous narrowband filter, it is output to the second low-noise amplifier 260. The second low-noise amplifier 260 amplifies the received signal and further transmits it to the transceiver 300.

[0089] In some embodiments, the first low-noise amplifier 130 and at least one second low-noise amplifier 260 are the same low-noise amplifier.

[0090] Taking an RF module including two RF transmit links 100 as an example, if the RF transmit link 100 and one of the RF receive links 200 share the same low-noise amplifier, then the first low-noise amplifier 130 and one of the second low-noise amplifiers 260 are the same low-noise amplifier. The corresponding RF module structure is referenced below. Figure 11 The diagram shows the eighth structural schematic of an embodiment of the radio frequency module. For example, if the radio frequency transmit link 100 and the two radio frequency receive links 200 share the same low-noise amplifier, then the first low-noise amplifier 130 and the two second low-noise amplifiers 260 are all the same low-noise amplifier.

[0091] In the single-receiver architecture of this application embodiment, all received signals share the same low-noise amplifier (LNA) and are input to the same receiver for processing. This structure requires only one receiving channel, which significantly reduces hardware costs compared to multi-receiver schemes and achieves functional equivalence in single-receiver signal processing.

[0092] Alternatively, the transceiver mentioned above can be a receiver, and the duplexer can be a multiplexer; no specific limitation is made here.

[0093] In addition, in related technologies, the following are adopted Figure 12 The RF module structure shown receives component carriers. The two component carrier signals from different frequency bands are amplified and then fed into the transmitters of the corresponding duplexers. The common terminal of the duplexers performs carrier aggregation in a Multi-ON switch array and connects to the antenna, transmitting the aggregated signal through the antenna.

[0094] During downlink carrier aggregation, downlink signals from two frequency bands enter the Multi-ON switch array from the antenna. The matching circuit in the switch array aggregates the two downlink signals. The aggregated signals pass through the common terminal of the duplexer and enter the duplexer for filtering. They are then further transmitted to the LNA for amplification before being transmitted to the transceiver for demodulation.

[0095] This method requires aggregation using a multi-on switching technology, but the aggregation process introduces signal loss, which is generally quite significant (approximately 1-1.5 dB). Furthermore, the multi-on switches also incur additional costs, depending on the frequency band and the number of switches.

[0096] The RF module provided in this application embodiment can utilize a dedicated RF receiving link to receive and process signals from various channels, with the received signals being aggregated at the transceiver. Therefore, it avoids the excessive losses and other problems associated with aggregation like those caused by switch arrays. Furthermore, it can effectively process signals from overlapping frequency bands. Consequently, the receiving performance of the electronic device is significantly improved.

[0097] For ease of understanding, the following description uses an exemplary embodiment to illustrate the radio frequency module. (Reference) Figure 13 The ninth schematic diagram shows the structure of a radio frequency module according to an embodiment. Taking the first communication frequency band as n8 and the second communication frequency band as n5 as an example, RX1 represents a device for filtering the signal of the second sub-band in the received frequency band of the n5 frequency band that does not overlap with the n8 frequency band. It can be a filtering module in the second duplexer or a filtering module in a continuous narrowband filter. RX3 represents a device for filtering the signal in the received frequency band of the n8 frequency band. It can be a filtering module in the first duplexer or a filtering module in a continuous narrowband filter. RX2 represents a device for filtering the signal of the first sub-band in the received frequency band of the n5 frequency band that overlaps with the n8 frequency band. It can be a filtering module in a continuous narrowband filter. The specific signal receiving logic is as follows:

[0098] 1) The transmit signal of the n8 or n5 band output by the transceiver enters from the input port of the PA.

[0099] 2) The PA amplifies the power of the transmitted signal.

[0100] 3) The transmitted signal, after being amplified by power, is transmitted to the input port of the corresponding duplexer via a switch, where it is filtered.

[0101] 4) After being filtered, the transmitted signal is output from the duplexer and then transmitted to the antenna through the next stage switch.

[0102] 5) The received signals of the second sub-band of the DRX frequency band and the third sub-band of the n8 frequency band are received through two antennas respectively, and the two received signals are respectively entered into a continuous narrowband filter, which is filtered by the corresponding RX1 filter module or RX3 filter module in the continuous narrowband filter.

[0103] 6) The received signals of the second sub-band of the n5 band and the third sub-band of the n8 band after filtering are further amplified by the corresponding LNAs, and the two amplified received signals are further transmitted to the transceiver.

[0104] 7) The RX2 module is activated based on whether the current transmitted signal and the current received signal both belong to the overlapping first sub-band.

[0105] In the process of transmitting the first sub-band signal of n8, if it is necessary to receive the received signal of the third sub-band of two frequency bands, the antenna and one of the antennas DRX each receive the received signal of the third sub-band of one frequency band, then use the corresponding RX3 module for filtering, and further process it through the corresponding LNA before transmitting it to the transceiver. If it is necessary to receive the received signal of the second sub-band of two frequency bands of n5, the antenna and one of the antennas DRX each receive the received signal of the second sub-band of n5, then use the corresponding RX1 module for filtering, and further process it through the corresponding LNA before transmitting it to the transceiver. If it is necessary to receive the received signal of the first sub-band of two frequency bands of n5, the two antennas DRX each receive the received signal of the first sub-band of n5, then use the corresponding RX2 module for filtering, and further process it through the corresponding LNA before transmitting it to the transceiver.

[0106] Furthermore, low-noise amplifiers can be reused, thereby reducing hardware costs, such as... Figure 14 The tenth schematic diagram of the structure of an RF module of one embodiment shows that the output of the continuous narrowband filter can be directly connected to the input of the LNA in the RF transmission link.

[0107] In this embodiment, a filtering module capable of filtering received signals in overlapping frequency bands is implemented in a continuous narrowband filter. When the frequency bands of the transmitted signal and the received signal overlap, the continuous narrowband filter is used for filtering, thereby enabling a single receiver to process the transmitted and received signals in overlapping frequency bands, thus improving the receiving performance of the electronic device.

[0108] This application also provides an electronic device including the radio frequency (RF) module described above. By setting up an RF transmit link and an RF receive link, the RF transmit link can support the transmission processing of the transmitted signal, while the RF receive link can support the reception processing of the first received signal. The first communication frequency band and the second communication frequency band overlap in the frequency range of the first sub-frequency band. That is, the transmitted signal and the first received signal in the first sub-frequency band can be transmitted and received simultaneously. Therefore, in the communication process of carrier aggregation technology, even if the transmitted component carrier and the received component carrier both belong to the overlapping first sub-frequency band, the RF module can still be used to achieve signal transmission and reception, thereby ensuring the receiving performance of the electronic device and improving the communication quality of the electronic device.

[0109] In one embodiment, an electronic device is provided, which may be a terminal. Figure 15 This is an internal structural diagram of an electronic device according to an embodiment, with reference to... Figure 15 The electronic device includes a processor, memory, input / output interfaces, a communication interface, a display unit, and an input device. The processor, memory, and input / output interfaces are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interfaces. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides the environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The input / output interfaces are used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, Near Field Communication (NFC), or other technologies. The display unit is used to create a visually visible image and can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the electronic device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the casing of the electronic device, or external keyboards, touchpads, or mice, etc.

[0110] Those skilled in the art will understand that Figure 15 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the electronic device to which the present application is applied. The specific electronic device may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0111] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0112] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A radio frequency module, characterized in that, The radio frequency module is used to support the transmission and reception of signals in the first communication frequency band and the second communication frequency band, and the frequency range of the first communication frequency band and the second communication frequency band overlaps in the first sub-frequency band. The radio frequency module includes a radio frequency transmission link and a radio frequency reception link; When the radio frequency transmitting link is used to support the transmission processing of the transmitted signal, the radio frequency receiving link is used to support the reception processing of the first received signal, and the first received signal is filtered using a first filter in the radio frequency receiving link; The transmitted signal includes a signal from the first sub-band of the first communication frequency band, and the received signal includes a signal from the first sub-band of the second communication frequency band.

2. The radio frequency module according to claim 1, characterized in that, The number of radio frequency receiving links is multiple; the first received signal is multiple; Multiple radio frequency receiving links are used to support main set reception processing and diversity reception processing of multiple channels of the first received signal; And / or, multiple radio frequency receiving links are used to support MIMO receiving processing of multiple of the first received signals.

3. The radio frequency module according to claim 2, characterized in that, The radio frequency receiving link can also be used to support the receiving and processing of the second received signal, and to filter the second received signal using the second filter in the radio frequency receiving link; The second received signal includes a signal from the second sub-band of the second communication frequency band, and the second sub-band of the second communication frequency band does not overlap with the first communication frequency band.

4. The radio frequency module according to claim 3, characterized in that, The radio frequency receiving link can also be used to support the reception and processing of a third received signal, and to filter the third received signal using a third filter in the radio frequency receiving link. The third received signal includes a signal from the third sub-band of the first communication frequency band, and the third sub-band of the first communication frequency band does not overlap with the first sub-band of the first communication frequency band.

5. The radio frequency module according to claim 4, characterized in that, The first filter, the second filter, and the third filter are integrated into a continuous narrowband filter; the first filter, the second filter, and the third filter share the input and output terminals of the continuous narrowband filter.

6. The radio frequency module according to claim 4, characterized in that, The radio frequency transmission link includes a duplexer, a first antenna, and a first low-noise amplifier; the duplexer is connected between the first antenna and the first low-noise amplifier. The duplexer is used to filter the transmitted signal and transmit the filtered transmitted signal to the first antenna for transmission. The duplexer is also used to filter the signal received by the first antenna and transmit the filtered signal to the first low-noise amplifier.

7. The radio frequency module according to claim 6, characterized in that, The duplexer includes a first duplexer and a second duplexer; the transmitted signal includes a first transmitted signal in the first communication frequency band and a second transmitted signal in the second communication frequency band; The radio frequency transmission link is used to support the transmission processing of the first transmission signal and to use the first duplexer to filter the first transmission signal of the first communication frequency band. And / or, the radio frequency transmission link is used to support the transmission processing of the second transmitted signal and to filter the second transmitted signal using the second duplexer.

8. The radio frequency module according to claim 7, characterized in that, When the radio frequency transmission link performs transmission processing on the second transmitted signal, the radio frequency transmission link is used to support the reception processing of the second received signal and to perform filtering processing on the second received signal using the second duplexer; And / or, when the radio frequency transmission link performs transmission processing on the first transmission signal, the radio frequency transmission link is used to support the reception processing of the third received signal and to perform filtering processing on the third received signal using the first duplexer.

9. The radio frequency module according to claim 6, characterized in that, Each of the radio frequency receiving links further includes a second low-noise amplifier connected to the first filter, the second filter, and the third filter; The second low-noise amplifier is used to amplify the received signal output from the first filter, the second filter, and / or the third filter.

10. The radio frequency module according to claim 9, characterized in that, The first low-noise amplifier and at least one of the second low-noise amplifiers are the same low-noise amplifier.

11. An electronic device, characterized in that, The electronic device includes the radio frequency module as described in any one of claims 1 to 10.

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