Electronic device

Abstract

The invention relates to an electronic device. The electronic equipment comprises a radio frequency front end module and an antenna module. A target power amplifier in the radio frequency front-end module performs power amplification processing on an uplink cellular signal and an uplink satellite signal in a multiplexing manner; a target low-noise amplifier in the radio frequency front-end module performs power amplification processing on a downlink cellular signal and a downlink satellite signal in a multiplexing manner; the antenna module is connected with the radio frequency front-end module, and multiplexes and receives cellular signals and satellite signals. By adopting the electronic equipment provided by the invention, the flexibility of setting the radio frequency front-end system of the satellite system in the electronic equipment can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to an electronic equipment. Background Art

[0002] Satellite communication refers to a method of communication using artificial satellites. It has the advantages of global coverage and no geographical restrictions. Therefore, many electronic devices such as smartphones are currently integrated with satellite communication systems.

[0003] At present, the satellite system in the electronic device is set in the RF module of the electronic device, and usually, the satellite system includes a completely independent RF front-end system, and the devices in its corresponding RF link exist independently of the devices in other RF links in the electronic device.

[0004] However, the configuration method of the RF front-end system of this satellite system has the problem of poor flexibility. Summary of the invention

[0005] An embodiment of the present application provides an electronic device that can improve the flexibility of setting a radio frequency front-end system of a satellite system in the electronic device.

[0006] The present application provides an electronic device, which includes a radio frequency front-end module and an antenna module;

[0007] The target power amplifier in the RF front-end module multiplexes the power amplification processing of the uplink cellular signal and the uplink satellite signal;

[0008] The target low noise amplifier in the RF front-end module multiplexes the power amplification processing of the downlink cellular signal and the downlink satellite signal;

[0009] The antenna module is connected to the radio frequency front-end module to multiplex the receiving and transmitting cellular signals and satellite signals.

[0010] The beneficial effects brought by the technical solution provided by the embodiment of the present application include at least:

[0011] The electronic device includes a radio frequency front-end module and an antenna module; the target power amplifier in the radio frequency front-end module multiplexes the power amplification processing of the uplink cellular signal and the uplink satellite signal; the target low noise amplifier in the radio frequency front-end module multiplexes the power amplification processing of the downlink cellular signal and the downlink satellite signal; the antenna module is connected to the radio frequency front-end module and multiplexes the transceiver of the cellular signal and the satellite signal. In this way, in the electronic device of the present application, the transceiver of the cellular signal and the satellite signal can reuse the radio frequency front-end module and the antenna module in the electronic device, thereby avoiding the problems of the complex structure of the radio frequency front-end module in the electronic device and the mutual interference between the satellite antenna used for satellite signal transmission and the cellular antenna used for cellular signal transmission due to the independent setting of the radio frequency front-end system of the satellite system in the related art. In the electronic device of the present application, the output amplification of the uplink cellular signal and the uplink satellite signal multiplexes the target power amplifier in the radio frequency front-end module, and the reception of the downlink cellular signal and the downlink satellite signal multiplexes the target low noise amplifier in the radio frequency front-end module, which reduces the structural complexity of the radio frequency front-end module, makes the setting of the radio frequency front-end module and the antenna module in the electronic device more flexible, and is conducive to improving the performance of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the structure of a satellite communication system in an electronic device in conventional technology;

[0014] Figure 2 It is a schematic diagram of the combined structure of a cellular radio frequency system and a satellite communication system in an electronic device in the conventional technology;

[0015] Figure 3 This is a schematic diagram of the structure of an electronic device in one embodiment of the present application;

[0016] Figure 4 This is a schematic diagram of the structure of another electronic device in one embodiment of the present application;

[0017] Figure 5 This is a structural block diagram of Sky58101 in one embodiment of the present application;

[0018] Figure 6 This is a structural block diagram of QM77058 in one embodiment of the present application;

[0019] Figure 7This is a schematic diagram of the structure of another electronic device in one embodiment of the present application;

[0020] Figure 8 This is a schematic diagram of the structure of another electronic device in one embodiment of the present application;

[0021] Fig. 9 This is a schematic diagram of the structure of another electronic device in one embodiment of the present application;

[0022] Fig.10 This is a schematic diagram of the structure of another electronic device in one embodiment of the present application;

[0023] Fig.11 This is a schematic diagram of the structure of another electronic device in one embodiment of the present application;

[0024] Fig.12 This is a schematic diagram of the structure of another electronic device in one embodiment of the present application;

[0025] Fig.13 This is a schematic diagram of the structure of another electronic device in one embodiment of the present application;

[0026] Fig.14 This is a schematic diagram of the structure of another electronic device in one embodiment of the present application;

[0027] Fig.15 This is a schematic diagram of the structure of another electronic device in one embodiment of the present application;

[0028] Fig.16 This is a schematic diagram of the structure of another electronic device in one embodiment of the present application;

[0029] Fig.17 This is a schematic diagram of the structure of another electronic device in one embodiment of the present application;

[0030] Fig.18 This is a schematic diagram of the structure of another electronic device in one embodiment of the present application;

[0031] Fig.19 This is a schematic diagram of the structure of another electronic device in one embodiment of the present application. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It should be understood that many specific details are set forth in the following description to facilitate a full understanding of the present application, but the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0034] It is understood that the terms "first", "second", etc. used in this application can be used in this article to describe various elements, but these elements are not limited by these terms. For example, without departing from the scope of this application, a first resistor can be referred to as a second resistor, and similarly, a second resistor can be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor. Thus, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0036] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0037] Satellite communication refers to a method of communication using artificial satellites. Satellite communication has the advantages of global coverage and no geographical restrictions. It can provide wide-area communication services and is not affected by factors such as geographical location and weather. It plays an important role in areas far away from land, mountains, oceans, and in specific scenarios such as disaster relief and maritime navigation.

[0038] The satellite communication system consists of ground stations, satellites and user terminals. The ground station sends information to the satellite via radio waves, and the satellite forwards the information to the ground station in the target area, and then transmits the information to the user terminal through the ground station. The user terminal is an electronic device with satellite communication function.

[0039] Satellite communications can realize a variety of communication methods such as voice, data and images, including telephone, Internet access, television broadcasting, etc. At present, satellite communications have been widely used in military, aerospace, telecommunications, radio and television, and weather forecasting.

[0040] With the continuous advancement of communication technology and the reduction of costs, satellite communications are developing rapidly. The new generation of satellite communication systems will be faster, more efficient and more reliable, providing a wider range of communication services for humans. At the same time, with the continuous introduction of the idea of ​​satellite Internet by 6G communication, user terminals supporting satellite functions have gradually attracted widespread attention.

[0041] There are many ways of satellite communication, such as Tiantong satellite, Inmarsat, Iridium satellite, Shuar satellite and Globalstar.

[0042] Currently, the structure of satellite communication systems in electronic equipment is as follows Figure 1 As shown, the uplink satellite signal is sent from the satellite communication transceiver, amplified by an independent satellite communication PA (power amplifier), and then sent from the main satellite antenna (PRX ANT). The downlink satellite signal received by the main satellite antenna is amplified by an independent LNA (low noise amplifier) ​​and then transmitted to the satellite communication transceiver. The downlink satellite signal received by the diversity satellite antenna (DRX ANT) is amplified by another independent LNA and then transmitted to the satellite communication transceiver.

[0043] See also Figure 2 FIG. 1 is a schematic diagram showing a combination of a cellular radio frequency system and a satellite communication system in a current electronic device. Figure 2 As shown, SDR753 is a cellular communication transceiver. The RF devices in the transceiver path of low-frequency cellular signals include: antenna LB (LowBand, low frequency) ANT0, antenna LB ANT1, and RF front-end module SKYS8101-11; the RF devices in the transceiver path of medium-high frequency cellular signals include: antenna MHB (Middle-High frequency Band, medium-high frequency) ANT2, antenna MHBANT3, antenna MHB ANT4, antenna MHB ANT5, and two RF front-end modules QM77058, and the transceiver path of low-frequency cellular signals and the transceiver path of medium-high frequency cellular signals are multiplexed in two different RF front-end modules QMD5303.

[0044] from Figure 2It can be seen that the core impact of the defects of the existing solutions lies in the fact that the RF front-end system of the satellite system is complex and has no intersection with the cellular system in current electronic devices. All RF devices of the satellite communication system are set on the periphery and use an external plug-in method. The completely independent design thinking leads to too long PCB routing and poor performance. At the same time, the cost and area of ​​external devices cannot be avoided.

[0045] Under the existing scheme, apart from the impact of the receiver (because the security mode involved in different satellite systems cannot be avoided), all other external devices such as PA, antenna, switch, LNA, etc. are a cumbersome design for current electronic devices, costing about 3￥ and occupying about 36mm^2 in area, as shown in Table 1;

[0046] (Table 1)

[0047]

[0048] However, with the development of communication network technology, mobile communications have evolved from the 2G network that only supported voice calls to the 5G network that now supports high-speed data traffic, providing great convenience for people's daily lives. With the increase in communication network standards, electronic devices (such as terminals) must meet the communication needs under various network standards (such as 2G, 3G, 4G, 5G, etc.). Limited by the size constraints of the terminal, the space of the mainboard PCB (Printed Circuit Board) has not been greatly increased due to the increase in communication needs, which makes the space layout and wiring of the mainboard PCB very tight.

[0049] The cellular RF system and satellite system structure set in existing electronic equipment, the RF front-end system of the satellite system is completely independent, which will increase the cost of the antenna. Figure 2 The RF module structure of the electronic device shown is complex, and adding two independent antennas for satellite communication in the complex antenna environment of the electronic device also has a significant impact on the performance of the original cellular antennas. Therefore, the current architecture design of the cellular RF system and the satellite system in the electronic device has many disadvantages in terms of cost and performance, and the setting method of the RF front-end module is not flexible enough.

[0050] In view of this, an embodiment of the present application provides an electronic device that can improve the flexibility of setting the RF front-end system of a satellite system in the electronic device. The electronic device can be, for example, a PDA (Personal Digital Assistant), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a user device in a 5G network, or a user device in a future evolved PLMN network, etc.

[0051] In one embodiment, Figure 3 As shown, a schematic diagram of the structure of an electronic device provided by an embodiment of the present application is shown. The electronic device includes a radio frequency front-end module and an antenna module; the target power amplifier in the radio frequency front-end module multiplexes the power amplification processing of the uplink cellular signal and the uplink satellite signal; the target low noise amplifier in the radio frequency front-end module multiplexes the power amplification processing of the downlink cellular signal and the downlink satellite signal; the antenna module is connected to the radio frequency front-end module and multiplexes the receiving and transmitting cellular signals and satellite signals.

[0052] Among them, as shown in Table 2, the relevant information of several common satellite communication methods is as follows:

[0053] (Table 2)

[0054]

[0055] In Table 2, UL refers to uplink and DL refers to downlink. From the data in Table 2, we can see that the transmission signals of satellite communications are all concentrated in the MB (medium frequency) band. Except for the relatively high frequency of Tiantong satellite, the other standards are between 1.5GHz and 1.6GHz, and the receiving signals are divided into two parts: MB (medium frequency) band and HB (high frequency) band. In addition, from a technical perspective, satellite communications usually adopt the time division method of TDD (Time Division Duplexing). Based on the bandwidth and carrying capacity of communication, some satellite communication methods adopt the method of uplink and downlink with the same frequency, while others adopt the method of uplink and downlink with different frequencies.

[0056] Depend on Figure 2It can be seen from the illustrated architecture that there are medium and high frequency antennas for transmitting and receiving medium and high frequency cellular signals in the electronic device, such as MHB ANT2, MHB ANT3, MHB ANT4, MHB ANT5, etc., which cover the range of MHB, and therefore, can be used to transmit and receive satellite signals. Based on this, the antenna module in the electronic device provided in the embodiment of the present application is multiplexed for transmitting and receiving cellular signals and satellite signals, cellular signals such as uplink cellular signals and downlink cellular signals, and satellite signals such as uplink satellite signals and downlink satellite signals. Through multiplexing, there is no need to set up an additional satellite antenna dedicated to satellite communication in the electronic device, which facilitates the arrangement of each antenna in the antenna module in the electronic device, improves antenna isolation, and ensures the quality of satellite communications and cellular communications.

[0057] Optionally, the antenna module may include multiple antennas.

[0058] In addition, it can be seen from the above that no matter which satellite communication method is used by electronic equipment, an additional satellite communication PA must be added. The high-power satellite communication PA provides strong support for the transmission of uplink satellite signals of the entire satellite system. However, due to the lack of protocol intercommunication between different satellite communication systems, there are also inconsistencies in the system solutions of satellite communication PA.

[0059] However, from a physical point of view, a wide-band satellite communication PA is sufficient to support the transmission of uplink satellite signals. As shown in Table 2, the physical frequencies are all concentrated between 1 GHz and 2.4 GHz in the MB (medium frequency) band.

[0060] In response to this problem, by analyzing the RF front-end module of the cellular RF system in the electronic device, it can be known that the parameters such as the operating frequency and output power of the PA contained in some RF front-end modules are theoretically close to the requirements for the satellite communication PA. In the embodiment of the present application, the PA in the RF front-end module that meets the requirements in the electronic device is used as the target power amplifier, and the target power amplifier is reused to perform power amplification processing on the uplink cellular signal and the uplink satellite signal. For example, when the electronic device sends an uplink cellular signal during cellular communication, the target power amplifier is used to power amplify the uplink cellular signal; and when the electronic device sends an uplink satellite signal during satellite communication, the target power amplifier is used to power amplify the uplink satellite signal to achieve multiplexing. In this way, there is no need to add an additional satellite communication PA, which reduces the complexity of the RF front-end module, saves the setting space inside the electronic device, and improves the flexibility of the RF front-end module setting.

[0061] Furthermore, as can be seen from the above, the requirement for the LNA for the received downlink satellite signal is also a mandatory requirement. In current electronic devices, due to the lack of interaction between the satellite system and the cellular system, some components cannot be reused or reuse will cause deterioration of the cellular system. Among them, the physical LNA also has a frequency range. As can be seen from Table 2, the frequencies of satellite communications are basically covered in the MHB (medium and high frequency) band. For example, the downlink of Globalstar involves the high frequency band (2.5 GHz).

[0062] To address this problem, by analyzing the RF front-end module of the cellular RF system in the electronic device, it can be seen that each RF front-end module includes multiple LNA devices that meet the MHB band requirements. Therefore, it can be used to amplify the received downlink satellite signal of the electronic device. Therefore, in the embodiments of this application, the LNA in the RF front-end module that meets the requirements in the electronic device is used as the target low-noise amplifier, and this target low-noise amplifier is reused to amplify the power of the downlink cellular signal and the downlink satellite signal. For example, when the electronic device is performing cellular communication and receiving a downlink cellular signal, this target low-noise amplifier is used to amplify the power of the downlink cellular signal; and when the electronic device is performing satellite communication and receiving a downlink satellite signal, this target low-noise amplifier is used to amplify the power of the downlink satellite signal to achieve reuse. In this way, there is no need to add an additional satellite communication LNA, reducing the complexity of the RF front-end module, saving the internal setting space of the electronic device, and improving the flexibility of the RF front-end module setting.

[0063] Regarding the satellite communication transceiver, due to the limitations of conditions such as security involved in itself, it is relatively difficult to unify the satellite communication transceivers in each satellite communication method. The satellite communication transceiver in the electronic device provided in the embodiments of this application can be integrated with the cellular communication transceiver into one body under allowable conditions; or, the satellite communication transceiver is independent of the cellular communication transceiver and is separately provided in the electronic device. Hereinafter, the RF transceiver is uniformly used to represent the satellite communication transceiver and the cellular communication transceiver in the electronic device.

[0064] In addition, it should be noted that the uplink cellular signal and the downlink cellular signal can be 2G signal, 3G signal, 4G signal or 5G signal, etc., and no specific limitation is made here.

[0065] In the above electronic device, the electronic device includes a radio frequency front-end module and an antenna module; the target power amplifier in the radio frequency front-end module multiplexes the power amplification processing of the uplink cellular signal and the uplink satellite signal; the target low noise amplifier in the radio frequency front-end module multiplexes the power amplification processing of the downlink cellular signal and the downlink satellite signal; the antenna module is connected to the radio frequency front-end module and multiplexes the transceiver of the cellular signal and the satellite signal. In this way, in the electronic device of the present application, the transceiver of the cellular signal and the satellite signal can reuse the radio frequency front-end module and the antenna module in the electronic device, thereby avoiding the problems of the complex structure of the radio frequency front-end module in the electronic device and the mutual interference between the satellite antenna used for satellite signal transmission and the cellular antenna used for cellular signal transmission due to the independent setting of the radio frequency front-end system of the satellite system in the related art. In the electronic device of the present application, the output amplification of the uplink cellular signal and the uplink satellite signal multiplexes the target power amplifier in the radio frequency front-end module, and the reception of the downlink cellular signal and the downlink satellite signal multiplexes the target low noise amplifier in the radio frequency front-end module, which reduces the structural complexity of the radio frequency front-end module, makes the setting of the radio frequency front-end module and the antenna module in the electronic device more flexible, and is conducive to improving the performance of the electronic device.

[0066] The transmission of uplink cellular signals and uplink satellite signals will be described below.

[0067] In one embodiment, see Figure 4 A schematic diagram of the structure of another electronic device is shown. The RF front-end module in the embodiment of the present application includes a first RF front-end module and a second RF front-end module, and a target power amplifier (target PA) is provided in the first RF front-end module; the antenna module includes a first antenna, and the first antenna is connected to the second RF front-end module; the first RF front-end module is used to use the target power amplifier to perform power amplification processing on the uplink cellular signal inputted from the cellular input port or the uplink satellite signal inputted from the satellite input port, and output the amplified signal to the second RF front-end module; the second RF front-end module is used to output the received amplified uplink cellular signal or uplink satellite signal to the first antenna for transmission. It should be noted that Figure 4 The architecture of the target low noise amplifier receiving and processing the downlink satellite signal is not shown.

[0068] The electronic device also includes a radio frequency transceiver. The radio frequency transceiver in the electronic device is connected to the cellular input port. When the electronic device performs cellular communication, the radio frequency transceiver inputs the uplink cellular signal to the first radio frequency front-end module through the cellular input port; the radio frequency transceiver is connected to the satellite input port. When the electronic device performs satellite communication, the radio frequency transceiver inputs the uplink satellite signal to the first radio frequency front-end module through the satellite input port. The radio frequency front-end module uses the target power amplifier to perform power amplification processing on the uplink cellular signal input from the cellular input port or the uplink satellite signal input from the satellite input port, and outputs the amplified signal to the second radio frequency front-end module.

[0069] The second RF front-end module is connected to the first antenna in the antenna module, and the second RF front-end module can output the received uplink cellular signal or uplink satellite signal after amplification to the first antenna for transmission.

[0070] Optionally, the first RF front-end module can be Figure 2 The second RF front-end module can be Figure 2 The transceiver module QM77058 shown in the figure.

[0071] Sky58101 is a Phase7 LE (enhanced seventh generation integrated) product. In order to cope with the increasing demand for various network standards and solve the problem of tight PCB layout, the high integration and miniaturization of devices have become a development trend. From the Phase2 (second generation integrated) products that only support single band at the beginning to the Phase7 (seventh generation integrated) products that support the integration of various standards, the integration of devices is getting higher and higher, and the package size of devices is getting smaller and smaller. Figure 5 The figure shows the block diagram of a typical Phase7 LE (enhanced seventh generation integration) product Sky58101, which is an LB L-PAmid (low-frequency power amplifier module with built-in low noise amplifier). Figure 6 The following is a block diagram of a typical Phase7 LE product, QM77058, which shows some of the components inside the QM77058. The QM77058 is an MHB L-PAmid (a mid-to-high frequency power amplifier module with built-in low noise amplifier). Figure 2 The QMD5303 in the module is a LD FEM (LNA DRX Front-end Modules, a diversity reception front-end module with built-in low noise amplifier).

[0072] from Figure 5It can be seen that Sky58101 has a PA provided for GSM HB (2G HB cellular signal), whose operating frequency is in the MB band, which meets the requirements of satellite signal processing. The output power of this PA is about 33.7dBm, which is theoretically the device closest to the PA requirements of satellite communication. Therefore, this PA can be used as the target power amplifier. Correspondingly, as an implementation method, the uplink cellular signal can be an uplink HB cellular signal, that is, a cellular signal belonging to the HB (high frequency) band range. In addition, since the uplink satellite signal belongs to the MHB band, as an implementation method, the first antenna is an MHB antenna, that is, an antenna working in the MHB band.

[0073] In order to enable the first RF front-end module to use the target power amplifier to power amplify the uplink cellular signal input to the cellular input port or the uplink satellite signal input to the satellite input port, in an embodiment of the present application, a transmission switching switch can be added to the original Sky58101 architecture, and the transmission switching switch is connected between the cellular input port and the satellite input port and the target power amplifier. When transmitting an uplink cellular signal, the transmission switching switch switches to a state connecting the cellular input port and the target power amplifier; when transmitting an uplink satellite signal, the transmission switching switch switches to a state connecting the satellite input port and the target power amplifier. Optionally, the transmission switching switch can be a single-pole double-throw switch.

[0074] In one embodiment, Figure 7 A schematic diagram of the structure of another electronic device provided by an embodiment of the present application is shown. In which, a first switch and a cellular receiving port are provided in the second RF front-end module; the second RF front-end module is specifically used to receive an amplified uplink cellular signal or an uplink satellite signal through the cellular receiving port; the first switch is used to connect the cellular receiving port and the first antenna when transmitting an uplink cellular signal or an uplink satellite signal, so that the first antenna transmits the amplified uplink cellular signal or the uplink satellite signal.

[0075] The first switch can be connected to the cellular receiving port and multiple other ports in the second RF front-end module. When receiving an uplink cellular signal or an uplink satellite signal, the first switch switches to a state connecting the cellular receiving port and the first antenna, so that the first antenna transmits the amplified uplink cellular signal or uplink satellite signal.

[0076] Optional, with Figure 5 and Figure 6 Based on the cellular communication transceiver as SDR753, the first RF front-end module as Sky58101, the second RF front-end module as QM77058, and the uplink cellular signal as HB band 2G cellular signal, refer to Figure 8The structure diagram of an electronic device provided by an embodiment of the present application is shown. Among them, the first RF front-end module is connected to low-frequency antennas LB ANT0 and LB ANT1 for transmitting and receiving low-frequency cellular signals. The target power amplifier is HB 2G PA in Sky58101; the cellular input port is 2GHB_IN in Sky58101; the satellite input port is a newly added port. The cellular receiving port is 2G_HB in QM77058; the first antenna includes MHB ANT2 and MHB ANT3. The first switch is Figure 8 The single-pole four-throw switch SP4T in the QM77058 is connected to the first antenna through the switching switch DP5T. It should be noted that the single-pole four-throw switch SP4T can also be connected to any low-noise amplifier in the QM77058 to transmit the downlink satellite signal received by the first antenna. For the process of receiving and processing the downlink satellite signal, please refer to the following description.

[0077] For ease of understanding, continue to refer to Figure 8 , the process of transmitting an uplink satellite signal by an electronic device provided in an embodiment of the present application is exemplarily described.

[0078] 1) The transmitted uplink satellite signal is output from the SDR753 transceiver (or other satellite communication transceivers) to the satellite input port of Sky58101;

[0079] 2) 2G GSM signal is input into Sky58101 through 2G HB_IN. The satellite signal and 2G HB cellular signal are switched through the internal improved transmission switch;

[0080] 3) The uplink satellite signal is amplified by HB 2G PA in Sky58101 and then output from 2GHB_TX_OUT port of Sky58101. The uplink satellite signal is amplified by HB 2G PA (the power output requirement of satellite communication can be achieved by adjusting the parameters of HB 2G PA, and the capability of PA can be further improved to meet the power requirement of satellite communication), while the 2G GSM signal is amplified and output normally;

[0081] 4) The output signals of 2GHB_TX_OUT (uplink satellite signal and 2G signal) are input from the 2G_HB port of QM77058;

[0082] 5) The input signal of 2G_HB is output from the ANT1 or ANT2 port after passing through the improved SP4T and DP5T inside QM77058;

[0083] 6) The uplink satellite signal or 2G signal output from the ANT1 port is eventually transmitted from the MHB ANT2 antenna; or, the uplink satellite signal or 2G signal output from the ANT2 port is eventually transmitted to the MHB ANT3 antenna.

[0084] In the embodiment of the present application, the satellite system reuses the MHB antenna for cellular communication in the electronic device, and the discrete peripheral target power amplifier and switch for processing the uplink satellite signal are integrated inside the RF front-end module of the cellular system. Among them, a transmission switching switch is added after the 2G HB_IN port inside the first RF front-end module, and a satellite input port is added at the same time, so as to meet the switching inside the first RF front-end module, simplify the external design, save PCB space, and have multiple advantages such as saving space and cost by external routing. In addition, illustratively, the main difference in the impact on the performance of electronic equipment is that different satellite systems will have some different benefits, which can be improved by about 1 to 2dB.

[0085] The following will continue to explain the reception of downlink cellular signals and downlink satellite signals.

[0086] In an embodiment of the present application, a two-antenna design may be used for receiving downlink satellite signals in an electronic device, and there may be two receiving modes. In one receiving mode, the two antennas are respectively used as a PRX (primary receive) antenna and a DRX (diversity receive) antenna, which are used to receive the primary downlink satellite signal and the diversity downlink satellite signal, respectively. Another receiving mode is the reception of downlink satellite signals based on the MIMO (multiple-in multipleout) mode, wherein one antenna is used to receive a first MIMO downlink satellite signal, and the other antenna is used to receive a second MIMO downlink satellite signal. It should be noted that there may be only one receiving mode in an electronic device, or two receiving modes may coexist, which is not specifically limited here.

[0087] The following describes the implementation methods provided for the two receiving modes respectively.

[0088] In one embodiment, for the main set reception and the diversity reception, as Fig. 9 A schematic diagram of the structure of another electronic device is shown. The target low noise amplifier includes a first low noise amplifier (first LNA) and a second low noise amplifier (second LNA), the second RF front-end module is provided with the first low noise amplifier; the RF front-end module also includes a third RF front-end module provided with the second low noise amplifier; the first antenna includes a main set receiving antenna and a diversity receiving antenna.

[0089] The main set receiving antenna is used to receive the main set downlink satellite signal or downlink cellular signal; the second RF front-end module is used to use the first low-noise amplifier to power amplify the main set downlink satellite signal or downlink cellular signal and then send it to the RF transceiver.

[0090] When the electronic device performs cellular communication, the main set receiving antenna can be used to receive downlink cellular signals; optionally, the main set receiving antenna can receive the main set downlink cellular signals. When the electronic device performs satellite communication, the main set receiving antenna can be used to receive the main set downlink satellite signals.

[0091] In the embodiment of the present application, the main set receiving antenna and the diversity receiving antenna may be MHB antennas. Correspondingly, the downlink cellular signal may be a downlink MHB cellular signal, that is, a cellular signal belonging to the MHB frequency band. The first low noise amplifier included in the second RF front-end module is originally used to perform power amplification processing on the cellular signal in the MHB frequency band, and the frequency of this working frequency band also happens to meet the requirements of satellite communication. Therefore, the first low noise amplifier can also be used to process the main set downlink satellite signal.

[0092] Specifically, the main set receiving antenna is connected to the second RF front-end module, and the main set downlink satellite signal or downlink cellular signal is received and transmitted to the second RF front-end module. Then the second RF front-end module inputs the main set downlink satellite signal or downlink cellular signal into the first low noise amplifier for power amplification processing, and the signal amplified by the first low noise amplifier is further sent to the RF transceiver.

[0093] Optionally, when the second RF front-end module includes multiple low-noise amplifiers that meet the frequency processing requirements for the downlink satellite signal, any one of them can be used as the first low-noise amplifier.

[0094] In addition, the diversity receiving antenna is used to receive diversity downlink satellite signals or downlink cellular signals; the second RF front-end module is used to output the diversity downlink satellite signals or downlink cellular signals to the third RF front-end module; the third RF front-end module is used to use the second low-noise amplifier to power amplify the diversity downlink satellite signals or downlink cellular signals and then send them to the RF transceiver.

[0095] When the electronic device performs cellular communication, the diversity receiving antenna can be used to receive downlink cellular signals; optionally, the diversity receiving antenna can receive diversity downlink cellular signals. When the electronic device performs satellite communication, the diversity receiving antenna can be used to receive diversity downlink satellite signals.

[0096] Since the first low noise amplifier in the second RF front end is used to process the main downlink satellite signal, other LNAs need to be used to process the diversity downlink satellite signal.

[0097] In an embodiment of the present application, the third RF front-end module in the electronic device also includes an LNA that was originally used to amplify another downlink MHB cellular signal or meet the requirements for downlink satellite signal processing. Therefore, the LNA can be used as a second low-noise amplifier and reused to amplify the diversity downlink satellite signal.

[0098] Specifically, the diversity receiving antenna is connected to the second RF front-end module, so that the diversity downlink satellite signal or downlink cellular signal is received and transmitted to the second RF front-end module. The second RF front-end module is connected to the third RF front-end module, and the third RF front-end module is connected to the RF transceiver. The second RF front-end module outputs the diversity downlink satellite signal or downlink cellular signal to the third RF front-end module. The third RF front-end module inputs the received diversity downlink satellite signal or downlink cellular signal into the second low noise amplifier for power amplification processing, and the signal amplified by the second low noise amplifier is further sent to the RF transceiver.

[0099] Optionally, the first RF front-end module can be Figure 2 The second RF front-end module can be Figure 2 The third RF front-end module can be Figure 2 The transceiver module QDM5303 shown in the figure.

[0100] In an optional embodiment of the present application, Fig. 9 Based on this, we provide Fig.10 The structural diagram of another electronic device shown in FIG. Fig.10 , one of the internal settings of the second RF front-end module and the third RF front-end module is described.

[0101] Among them, the second RF front-end module is provided with a second switch and a first switching switch; the first switching switch is connected to the main set receiving antenna and the second switch; the second switch is used to connect the first low noise amplifier and the first switching switch when the main set receiving antenna receives the main set downlink satellite signal, so as to transmit the main set downlink satellite signal transmitted through the first switching switch to the first low noise amplifier. In this way, by setting the second switch connecting the first low noise amplifier and the first switching switch, the main set downlink satellite signal received by the main set receiving antenna can be directly transmitted to the first low noise amplifier through this path for amplification processing, thereby improving the efficiency of transmitting the main set downlink satellite signal and ensuring the stability of the main set downlink satellite signal transmission process; and the second switch has a simple structure, which reduces the complexity of hardware implementation, improves the flexibility of the RF front-end module setting, and optimizes the receiving performance of satellite communication of electronic equipment.

[0102] The second RF front-end module is specifically used to output the diversity downlink satellite signal from the first target output port to the third RF front-end module when the diversity receiving antenna receives the diversity downlink satellite signal; the third RF front-end module is specifically used to receive the diversity downlink satellite signal through the first target antenna port, and after outputting the diversity downlink satellite signal from the first built-in port through the first built-in switching switch, receive the diversity downlink satellite signal through the second built-in port; and use the second low noise amplifier connected to the second built-in port to perform power amplification processing on the diversity downlink satellite signal.

[0103] That is, the first switching switch is also connected to the diversity receiving antenna and the first target output port, and the diversity downlink satellite signal received by the diversity receiving antenna is output from the first target output port in the second RF front-end module to the third RF front-end module through the first switching switch. The first target output port of the second RF front-end module is connected to the first target antenna port of the third RF front-end module, thereby transmitting the diversity downlink satellite signal to the third RF front-end module. Since the first built-in switching switch is also directly connected to the second LNA to transmit other cellular signals directly to the second LNA for amplification processing ( Fig.10 (not shown), to avoid affecting the processing of other cellular signals, in an embodiment of the present application, when transmitting a diversity downlink satellite signal, the first built-in switching switch is controlled to switch to a state of connecting the first target antenna port and the first built-in port, and the first built-in port is connected to the second built-in port, and the second built-in port is connected to the second LNA, so that the diversity satellite signal can be transmitted to the second LNA for amplification processing and further transmitted to the RF transceiver.

[0104] It should be noted that the above-mentioned processing routes after receiving the main downlink satellite signal and the processing routes after receiving the diversity downlink satellite signal are only used as an implementation method. Optionally, in the above-mentioned embodiment, the processing routes after receiving the main downlink satellite signal and the diversity downlink satellite signal can be interchanged, which will not be repeated here.

[0105] Optional, continue with Figure 5 and Figure 6 Based on the cellular communication transceiver being SDR753, the first RF front-end module being Sky58101, the second RF front-end module being QM77058 and the third RF front-end module being QDM5303, the following is shown. Fig.11A structural schematic diagram of an electronic device shown in FIG. Among them, the first switch is a single-pole four-throw switch SP4T in QM77058, and SP4T is connected to the first switching switch DP5T; the first switching switch DP5T is connected to the main set receiving antenna MHBANT3 through port ANT2, and is connected to the diversity receiving antenna MHB ANT2 through port ANT1. The first target output port is the TRX1 port in QM77058; the first target antenna port is the MHB_ANT port in QDM5303, and the first built-in switching switch is the MHB switching switch in QDM5303. The first built-in port is the MHB_RX port or the MHB_TRX port in QDM5303. The second built-in port is the B32_AUX port in QDM5303. Exemplarily, the first low noise amplifier is LNA5 in QM77058, which can also be other LNAs.

[0106] It should be noted that the first switch and the second switch mentioned above can be the same switch, for example, the same single-pole four-throw switch. The fixed end of the switch is connected to the first low-noise amplifier, the 2G_HB port, the TRX3 port, the TRX2 port and the first switching switch DP5T, and switches to different states when transmitting different signals.

[0107] For ease of understanding, continue to refer to Fig.11 , the process of receiving the main downlink satellite signal and the diversity downlink satellite signal by the electronic device provided in the embodiment of the present application is described by way of example.

[0108] 1) The main set downlink satellite signal received by the main set receiving antenna enters through the ANT2 (or ANT1) port of QM77058;

[0109] 2) After passing through the DP5T of QM77058, it enters the MHB LNA inside the QM77058 for amplification in the improved SP4T;

[0110] 3) The main set of downlink satellite signals is amplified by the LNA inside the QM77058 and then output from the LNA_OUT port;

[0111] 4) The main downlink satellite signal output by LNA_OUT is finally processed inside the SDR753 transceiver (or enters the satellite communication transceiver);

[0112] 5) The diversity downlink satellite signal received by the diversity receiving antenna enters through the ANT1 (or ANT2) port of QM77058;

[0113] 6) After passing through DP5T of QM77058, it is output from TRX1 port;

[0114] 7) The diversity downlink satellite signal output from the TRX1 port of QM77058 is input to the ANT port of QDM5303;

[0115] 8) The signal input from the ANT port of QDM5303 is output through the MHB_RX or MHB_TRX port;

[0116] 9) The signal output from the MHB_RX or MHB_TRX port of QDM5303 is input to B32_AUX of QDM5303;

[0117] 10) The diversity downlink satellite signal entering from B32_AUX is amplified by the LNA of QDM5303 and output from the LNA_OUT port;

[0118] 11) The diversity downlink satellite signal output by LNA_OUT is finally processed by the SDR753 transceiver (or satellite communication transceiver).

[0119] In one embodiment, for the receiving method in MIMO mode, such as Fig.12 A schematic diagram of the structure of another electronic device shown. The target low noise amplifier includes a third low noise amplifier (third LNA) and a fourth low noise amplifier (fourth LNA); the RF front-end module includes a fourth RF front-end module provided with the third low noise amplifier and a fifth RF front-end module provided with the fourth low noise amplifier; the antenna module includes a first MIMO receiving antenna connected to the fourth RF front-end module; the antenna module also includes a second MIMO receiving antenna connected to the fourth RF front-end module.

[0120] When the electronic device performs cellular communication, the first MIMO receiving antenna can be used to receive downlink cellular signals, such as downlink MHB cellular signals; and when the electronic device performs satellite communication, the first MIMO receiving antenna can be used to receive first MIMO downlink satellite signals.

[0121] In an optional embodiment of the present application, the first MIMO receiving antenna and the second MIMO receiving antenna may be MHB antennas.

[0122] Optionally, the fourth RF front-end module can be the same as the second RF front-end module. Similarly, the third low-noise amplifier included in the fourth RF front-end module is originally used to power amplify the cellular signal in the MHB band, and the frequency of this operating band also happens to meet the requirements of satellite communication. Therefore, the third low-noise amplifier can also be used to amplify the first MIMO downlink satellite signal.

[0123] Specifically, the first MIMO receiving antenna is used to receive the first MIMO downlink satellite signal or downlink cellular signal and transmit it to the fourth RF front-end module. The fourth RF front-end module then inputs the first MIMO downlink satellite signal or downlink cellular signal into the third low noise amplifier for power amplification, and the signal amplified by the third low noise amplifier is sent to the RF transceiver.

[0124] Optionally, when the fourth RF front-end module includes multiple low-noise amplifiers that meet the frequency processing requirements for the downlink satellite signal, any one of them can be used as the third low-noise amplifier.

[0125] In addition, the second MIMO receiving antenna is used to receive the second MIMO downlink satellite signal or the downlink cellular signal; the fourth RF front-end module is used to output the second MIMO downlink satellite signal or the downlink cellular signal to the fifth RF front-end module; the fifth RF front-end module is used to use the fourth low-noise amplifier to power amplify the second MIMO downlink satellite signal or the downlink cellular signal and then send it to the RF transceiver.

[0126] When the electronic device performs cellular communication, the second MIMO receiving antenna can be used to receive downlink cellular signals. When the electronic device performs satellite communication, the second MIMO receiving antenna can be used to receive second MIMO downlink satellite signals.

[0127] Optionally, the first MIMO receiving antenna and the second MIMO receiving antenna may work simultaneously, that is, the electronic device receives the first MIMO downlink satellite signal and the second MIMO downlink satellite signal simultaneously.

[0128] Optionally, the fifth RF front-end module can be the same as the third RF front-end module. Similarly, the fifth RF front-end module also includes an LNA originally used to amplify another downlink MHB cellular signal or meet the requirements for downlink satellite signal processing. Therefore, the LNA can be used as a fourth low-noise amplifier and reused to amplify the second MIMO downlink satellite signal.

[0129] Optionally, the fourth RF front-end module can be Figure 2 The fifth RF front-end module can be QM77058. Figure 2 The transceiver module QDM5303 shown in the figure.

[0130] In an optional embodiment of the present application, Fig.12 Based on this, we provide Fig.13 The structural diagram of another electronic device shown in FIG. Fig.13 , one of the internal settings of the fourth RF front-end module and the fifth RF front-end module is described.

[0131] Among them, the fourth RF front-end module is provided with a fifth switch and a second switching switch; the second switching switch is connected to the first MIMO receiving antenna and the fifth switch; the fifth switch is used to connect the third low noise amplifier and the second switching switch when the first MIMO receiving antenna receives the first MIMO downlink satellite signal, so as to transmit the first MIMO downlink satellite signal transmitted through the second switching switch to the third low noise amplifier. In this way, by setting the fifth switch connecting the third low noise amplifier and the second switching switch, the main set downlink satellite signal received by the main set receiving antenna can be directly transmitted to the third low noise amplifier through this path for amplification processing, thereby improving the efficiency of transmitting and processing the first MIMO downlink satellite signal and ensuring the stability of the first MIMO downlink satellite signal transmission process; and the fifth switch has a simple structure, which reduces the complexity of hardware implementation, improves the flexibility of the RF front-end module setting, and optimizes the receiving performance of satellite communication of electronic equipment.

[0132] The fourth RF front-end module is specifically used to output the second MIMO downlink satellite signal to the fifth RF front-end module through the second target output port when the second MIMO receiving antenna receives the second MIMO downlink satellite signal; the fifth RF front-end module is specifically used to receive the second MIMO downlink satellite signal through the second target antenna port, and after outputting the second MIMO downlink satellite signal from the third built-in port through the second built-in switching switch, receive the second MIMO downlink satellite signal through the fourth built-in port; and use the fourth low noise amplifier connected to the fourth built-in port to power amplify the second MIMO downlink satellite signal.

[0133] That is, the second switching switch is also connected to the second MIMO receiving antenna and the second target output port, and the second MIMO downlink satellite signal received by the second MIMO receiving antenna is output from the second target output port in the fourth RF front-end module to the fifth RF front-end module through the second switching switch. The second target output port of the fourth RF front-end module is connected to the second target antenna port of the fifth RF front-end module, thereby transmitting the second MIMO downlink satellite signal to the fifth RF front-end module. Since the second built-in switching switch is also directly connected to the fourth LNA to transmit other cellular signals directly to the fourth LNA for amplification processing ( Fig.13 (not shown), to avoid affecting the processing of other cellular signals, in an embodiment of the present application, when transmitting the second MIMO downlink satellite signal, the second built-in switching switch is controlled to switch to a state of connecting the second target antenna port and the third built-in port, and the third built-in port is connected to the fourth built-in port, and the fourth built-in port is connected to the fourth LNA, so that the second MIMO satellite signal can be transmitted to the fourth LNA for amplification processing and further transmitted to the RF transceiver.

[0134] It should be noted that the above-mentioned processing route after receiving the first MIMO downlink satellite signal and the processing route after receiving the second MIMO downlink satellite signal are only used as an implementation method. Optionally, in the above-mentioned embodiment, the processing routes after receiving the first MIMO downlink satellite signal and the second MIMO downlink satellite signal can be interchanged, which will not be repeated here.

[0135] In an optional embodiment of the present application, the RF front-end module may only include a first RF front-end module, a second RF front-end module, a third RF front-end module, and an LB antenna and an MHB antenna connected thereto, thereby multiplexing the first RF front-end module, the second RF front-end module, and the third RF front-end module to realize the reception and transmission of satellite signals and the reception and transmission of cellular signals. At this time, the reception of satellite signals can be main set reception and diversity reception.

[0136] Alternatively, the RF front-end module may only include the first RF front-end module, the fourth RF front-end module, the fifth RF front-end module, and the LB antenna and the MHB antenna connected thereto, thereby multiplexing the first RF front-end module, the fourth RF front-end module, and the fifth RF front-end module to realize the reception and transmission of satellite signals and cellular signals. At this time, the reception of satellite signals can be MIMO mode reception, and the electronic device uses the first RF front-end module to transmit the amplified uplink satellite signal to the fourth RF front-end module, and transmits it to the MHB antenna connected to the fourth RF front-end module through the fourth RF front-end module for transmission. The details are not repeated here.

[0137] Alternatively, the RF front-end module may simultaneously include a first RF front-end module, a second RF front-end module, a third RF front-end module, a fourth RF front-end module, a fifth RF front-end module, and an LB antenna and MHB antennas connected thereto, thereby multiplexing the first RF front-end module, the second RF front-end module, the third RF front-end module, the fourth RF front-end module and the fifth RF front-end module to realize the reception and transmission of satellite signals and cellular signals. At this time, the electronic device can realize the reception of main downlink satellite signals and diversity downlink satellite signals, and can also realize the reception of first MIMO downlink satellite signals and second MIMO downlink satellite signals.

[0138] For example, continue with Figure 5 and Figure 6 As a basis, take the cellular communication transceiver as SDR753, the first RF front-end module as Sky58101, the second RF front-end module as QM77058, the third RF front-end module as QDM5303, the fourth RF front-end module as another QM77058, and the fifth RF front-end module as another QDM5303 as an example. Fig.14 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application is shown.

[0139] Among them, for the fourth RF front-end module QM77058, the fifth switch is a single-pole four-throw switch SP4T, SP4T is connected to the second switch DP5T; the second switch is connected to the first MIMO receiving antenna MHB ANT5 through the port ANT2, and is connected to the second MIMO receiving antenna MHB ANT4 through the port ANT1. The second target output port is the TRX1 port in QM77058.

[0140] For the fifth RF front-end module QDM5303, the second target antenna port is the MHB_ANT port, the second built-in switch is the MHB switch, the third built-in port is the MHB_RX port or the MHB_TRX port, and the fourth built-in port is the B32_AUX port.

[0141] For ease of understanding, continue to refer to Fig.14 , the process of receiving the first MIMO downlink satellite signal and the second MIMO downlink satellite signal by the electronic device provided in the embodiment of the present application is exemplarily described.

[0142] 1) The first MIMO downlink satellite signal received by MHB ANT5 and the second MIMO downlink satellite signal received by MHB ANT4 are respectively input from the ANT1 and ANT2 ports of the fourth RF front-end module QM77058;

[0143] 2) The first MIMO downlink satellite signal directly enters the MHB LNA inside the QM77058 after passing through the DP5T and improved SP4T of the QM77058;

[0144] 3) The first MIMO downlink satellite signal after amplification by the internal LNA of QM77058 is output from LNA_OUT through the MUX array switch;

[0145] 4) The first MIMO downlink satellite signal output by LNA_OUT is finally processed by the SDR753 transceiver (or satellite communication transceiver);

[0146] 5) The second MIMO downlink satellite signal is output from the TRX port after passing through the DP5T of QM77058;

[0147] 6) The second MIMO downlink satellite signal output from the TRX1 port is input to the ANT port of the QDM5303;

[0148] 7) The second MIMO downlink satellite signal input from the ANT port of QDM5303 is output through the MHB_RX or MHB_TRX port;

[0149] 8) The signal output from the MHB_RX or MHB_TRX port of QDM5303 is input to the B32_AUX port of QDM5303;

[0150] 9) The second MIMO downlink satellite signal entering from the B32_AUX port is amplified by the LNA of the QDM5303 and output from the LNA_OUT port;

[0151] 10) The second MIMO downlink satellite signal output from the LNA_OUT port is finally processed by the SDR753 transceiver (or satellite communication transceiver).

[0152] In the embodiment of the present application, each RF front-end module in the multiplexed electronic device provides a PA for processing satellite signals based on Phase 7LE LBL-Pamid, and at the same time assists in optimizing the switch and LNA of MHB L-Pamid to realize the reception of satellite signals. By improving the existing Phase7 LE LB / MHB transceiver module, all the devices of the satellite communication front end are integrated or reused into Phase7 LE LB / MHB to realize a satellite communication terminal with higher integration and better performance. Taking the second RF front-end module and the fourth RF front-end module as QM77058 as an example, the original SP3T inside the transceiver module is changed to SP4T, and the wiring is directly realized inside the module, directly from QM77058 to the LNA that processes the signal of the MHB frequency band, while realizing the amplification processing of the downlink satellite communication signal, the complexity of the design is reduced, the area of ​​the RF front-end module is saved, the flexibility of the RF front-end module setting is improved, and the reception performance of the satellite communication of the electronic device is optimized.

[0153] Will Figure 2 The prior art solutions shown and Fig.14 The performance comparison of the solutions provided by this application is shown in Table 3:

[0154] (Table 3)

[0155]

[0156]

[0157] As shown in Table 3, from the overall dimension, the solution provided by the embodiment of the present application can save the antenna, switch, LNA, and PA in terms of cost, with a comprehensive cost of about 2.8 yuan; from the performance dimension, although the main set reception and diversity reception need to pass through the internal switch SP4T of QM77058, resulting in an increase of 0.8dB in loss (0.4dB for the main set and diversity respectively), the additional MIMO1 and MIMO2 can completely offset the increase brought by this part and even exceed the original performance. Another important point is that the improved Phase 7LE chip integrates all the peripheral devices of satellite communication inside, and the area can be optimized by 36mm^2. The overall solution is highly integrated and there are no external devices at all.

[0158] Considering that in the above embodiments, the main set downlink satellite signal needs to pass through the first switch and the second switch before reaching the first LNA during reception, and the first MIMO downlink satellite signal needs to pass through the second switch and the fifth switch before reaching the third LNA during reception, there is signal loss in the process. Therefore, another solution for main set reception, diversity reception and MIMO mode reception is provided respectively, and the implementation methods of the two solutions are described below. It should be noted that the two implementation methods below do not involve changes in the transmission path of the uplink satellite signal, but only involve changes in the reception path of the downlink satellite signal.

[0159] In one embodiment, another implementation method for main set reception and diversity reception is provided. Fig.15 The structural diagram of another electronic device shown in FIG. Fig.15 , another configuration method inside the second RF front-end module and the third RF front-end module is described.

[0160] Among them, a third switch is provided in the second RF front-end module, and the third switch is connected to the main receiving antenna; a fourth switch and the first satellite output port are provided in the second RF front-end module; and the fourth switch is connected to the diversity receiving antenna.

[0161] The third switch is used to connect the first low noise amplifier and the main set receiving antenna when the main set receiving antenna receives the main set downlink satellite signal, so as to transmit the main set downlink satellite signal to the first low noise amplifier.

[0162] That is, the main set downlink satellite signal received by the main set receiving antenna passes through the third switching switch to the first low noise amplifier for amplification and is then transmitted to the RF transceiver. In this way, the main set downlink satellite signal received by the main set receiving antenna can be transmitted to the first LNA for processing only through the third switch, which not only improves the efficiency of transmitting the main set downlink satellite signal, but also only causes signal loss caused by the third switch in the transmission process. Relatively speaking, the signal loss in the process of transmitting the main set downlink satellite signal is effectively reduced, ensuring the signal quality when the transceiver receives the main set downlink satellite signal, and optimizing the receiving performance of satellite communication of electronic equipment.

[0163] Optionally, the third switch is a single-pole double-throw switch, and a fixed end thereof is connected to the first switching switch, the main receiving antenna and the first low-noise amplifier.

[0164] When the electronic device performs cellular communication, the active end of the third switch is controlled to switch to a state of connecting the main set receiving antenna and the first switching switch, so that the downlink cellular signal received by the main set receiving antenna is further transmitted to the corresponding LNA for amplification after passing through the first switching switch. When the electronic device performs satellite communication, the active end of the third switch is controlled to switch to a state of connecting the main set receiving antenna and the first low noise amplifier, so as to transmit the main set downlink satellite signal to the first low noise amplifier for amplification and then to the RF receiver.

[0165] In addition, the fourth switch is used to connect the first satellite output port and the diversity receiving antenna when the diversity receiving antenna receives the diversity downlink satellite signal, so as to output the diversity downlink satellite signal from the first satellite output port to the third RF front-end module; the third RF front-end module is specifically used to receive the diversity downlink satellite signal through the second built-in port, and use the second low-noise amplifier connected to the second built-in port to power amplify the diversity downlink satellite signal.

[0166] Among them, due to the presence of the fourth switch, the diversity downlink satellite signal can be directly transmitted to the second built-in port of the third RF front-end module by controlling the fourth switch, and further transmitted to the second low-noise amplifier. In this way, the diversity downlink satellite signal can be effectively transmitted to the second low-noise amplifier for amplification processing, and this process will not affect the transmission of the cellular signal, thereby ensuring the cellular communication quality and satellite communication quality of the electronic device.

[0167] Optionally, the second RF front-end module may be a transceiver module QM77058. Fig.16The structure diagram of another improved MHB L-PAmid provided in the embodiment of the present application is shown. By integrating a SPDT switch as the third switch and the fourth switch in each ANT port before the DP5T inside the QM77058, and opening a newly added port DRX ANT on the QM77058 as the first satellite output port. Thus, the increased loss of the downlink satellite signal after passing through the DP5T and SP4T inside the QM77058 can be optimized. One of the SPDTs can be directly connected to the MHB LNA inside the QM7758, and the other SPDT can be directly connected to the DRX ANT port.

[0168] For example, the cellular communication transceiver is SDR753, the first RF front-end module is Sky58101, the second RF front-end module is QM77058, and the third RF front-end module is QDM5303. Fig.17 Schematic diagram of the structure of the electronic device shown.

[0169] Optional, reference Fig.17 When the electronic device performs cellular communication, the fourth switch connects the diversity receiving antenna and the first switching switch DP5T, thereby outputting the downlink cellular signal through the port TRX1 to the third RF front-end module MNB_ANT port, and then transmitted to the second LNA through the MHB switch for amplification and then transmitted to the transceiver.

[0170] For ease of understanding, continue to refer to Fig.17 , the process of receiving the main downlink satellite signal and the diversity downlink satellite signal by the electronic device provided in the embodiment of the present application is described by way of example.

[0171] 1) The main set downlink satellite signal enters through the ANT2 port of QM77058;

[0172] 2) After passing through the ANT2 port of QM77058, it is directly transmitted to the MHB LNA inside the device for amplification after passing through the improved SPDT;

[0173] 3) The main set downlink satellite signal is amplified by the MHB LNA inside the QM77058 and output from the LNA_OUT port;

[0174] 4) The amplified main set downlink satellite signal output by LNA_OUT is finally processed inside the SDR753 transceiver (or satellite communication transceiver);

[0175] 5) The diversity downlink satellite signal enters through the AN1 port of QM77058;

[0176] 6) Output from the DRX ANT port after passing through the improved SPDT inside the QM77058;

[0177] 7) The diversity downlink satellite signal output from the DRX ANT port is input to the B32_AUX port of the QDM5303;

[0178] 8) The diversity downlink satellite signal entering from B32_AUX is amplified by the LNA in the QDM5303 and then output from the LNA_OUT port;

[0179] 9) The amplified diversity downlink satellite signal output from the LNA_OUT port is finally processed by the SDR753 transceiver (or satellite communication transceiver).

[0180] In one embodiment, another implementation of the receiving method for the MOMI mode is provided. Fig.18 The structural diagram of another electronic device shown in FIG. Fig.18 , another configuration method inside the fourth RF front-end module and the fifth RF front-end module is described.

[0181] Among them, the fourth RF front-end module is provided with a sixth switch, a seventh switch and a second satellite output port; the sixth switch is connected to the first MIMO receiving antenna; and the seventh switch is connected to the second MIMO receiving antenna.

[0182] The sixth switch is used to connect the third low noise amplifier and the first MIMO receiving antenna to transmit the first MIMO downlink satellite signal to the third low noise amplifier when the first MIMO receiving antenna receives the first MIMO downlink satellite signal. In this way, the first MIMO downlink satellite signal can be transmitted to the third LNA for processing only through the sixth switch, which not only improves the efficiency of transmitting the first MIMO downlink satellite signal, but also only causes signal loss caused by the sixth switch in the transmission process. Relatively speaking, the signal loss in the process of transmitting the first MIMO downlink satellite signal is effectively reduced, ensuring the signal quality when the transceiver receives the first MIMO downlink satellite signal, and optimizing the receiving performance of satellite communication of electronic equipment.

[0183] The seventh switch is used to connect the second satellite output port and the second MIMO receiving antenna when the second MIMO receiving antenna receives the second MIMO downlink satellite signal, so as to output the second MIMO downlink satellite signal from the second satellite output port to the fifth RF front-end module; the fifth RF front-end module is specifically used to receive the second MIMO downlink satellite signal through the fourth built-in port, and use the fourth low-noise amplifier connected to the fourth built-in port to power amplify the second MIMO downlink satellite signal.

[0184] Due to the presence of the seventh switch, the second MIMO downlink satellite signal can be directly transmitted to the fourth built-in port of the fifth RF front-end module by controlling the seventh switch, and further transmitted to the fourth low-noise amplifier for amplification. In this way, the second MIMO downlink satellite signal can be effectively transmitted to the fourth low-noise amplifier for amplification, and at the same time, this process will not affect the transmission of the cellular signal, thereby ensuring the cellular communication quality and satellite communication quality of the electronic device.

[0185] For example, based on Fig.16 The transceiver module shown in the figure takes the cellular communication transceiver as SDR753, the first RF front-end module as Sky58101, the second RF front-end module as QM77058, the third RF front-end module as QDM5303, the fourth RF front-end module as another QM77058, and the fifth RF front-end module as another QDM5303 as an example. Fig.19 Schematic diagram of the structure of the electronic device shown.

[0186] Optional, reference Fig.19 When the electronic device performs cellular communication, the seventh switch connects the second MIMO receiving antenna and the second switching switch DP5T, thereby outputting the downlink cellular signal through the port TRX1 to the fifth RF front-end module MNB_ANT port, and then transmitted to the second LNA through the MHB switch for amplification and then transmitted to the transceiver.

[0187] For ease of understanding, continue to refer to Fig.19 , the process of receiving the first MIMO downlink satellite signal and the second MIMO downlink satellite signal by the electronic device provided in the embodiment of the present application is exemplarily described.

[0188] 1) The first MIMO downlink satellite signal and the second MIMO downlink satellite signal received by MHB ANT4 and MHB ANT5 are input from the ANT1 port and ANT2 port of QM77058 respectively;

[0189] 2) The first MIMO downlink satellite signal directly enters the MHB LNA inside the QM77058 after passing through the ANT2 and improved SPDT of the QM77058;

[0190] 3) The first MIMO downlink satellite signal after amplification by the internal MHB LNA of QM77058 is output from the LNA_OUT port through the MUX array switch;

[0191] 4) The first MIMO downlink satellite signal output from the LNA_OUT port is finally processed by the SDR753 transceiver (or satellite communication transceiver);

[0192] 5) The second MIMO downlink satellite signal passes through ANT1 of QM77058 and the improved SPDT before being output from the DRX ANT port;

[0193] 6) The second MIMO downlink satellite signal output from the DRX ANT port is directly input from B32_AUX of the QDM5303;

[0194] 7) The second MIMO downlink satellite signal entering from B32_AUX is amplified by the LNA of QDM5303 and output from the LNA_OUT port;

[0195] 8) The second MIMO downlink satellite signal output from the LNA_OUT port is finally processed by the SDR753 transceiver (or satellite communication transceiver).

[0196] In the embodiment of the present application, a SPDT is integrated in each ANT port before the DP5T inside the QM77058, thereby optimizing the satellite communication loss that would otherwise increase after passing through the DP5T and SP4T inside the QM77058. One of the SPDTs directly transmits the downlink satellite signal to the MHB LNA inside the QM7758 for amplification, and the other SPDT directly outputs the downlink satellite signal to the DRX ANT port, without passing through the DP5T, thereby reducing the loss of the downlink satellite signal and improving the satellite communication performance of the electronic device.

[0197] Will Figure 2 The prior art solutions shown and Fig.19 The performance comparison of the solutions provided by this application is shown in Table 4:

[0198] (Table 4)

[0199]

[0200]

[0201] As shown in Table 4, the main improvement is to improve the receiving performance of satellite communications of electronic equipment based on the optimized fourth RF front-end module and the fifth RF front-end module, while there is no deterioration in the area, cost, integration, etc. of the RF front-end module.

[0202] Optionally, the switching of the working states of the switches in the above-mentioned embodiments of the present application may be controlled by a central processor or a radio frequency transceiver of the electronic device.

[0203] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", "ideal embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0204] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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 specification.

[0205] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. An electronic device, It is characterized in that The electronic device includes a radio frequency front-end module and an antenna module; The target power amplifier in the RF front-end module multiplexes power amplification processing on uplink cellular signals and uplink satellite signals; The target low noise amplifier in the RF front-end module multiplexes the downlink cellular signal and the downlink satellite signal to perform power amplification processing; The antenna module is connected to the RF front-end module to multiplex the receiving and transmitting cellular signals and satellite signals.

2. The electronic device according to claim 1, It is characterized in that The RF front-end module includes a first RF front-end module and a second RF front-end module, and the target power amplifier is provided in the first RF front-end module; the antenna module includes a first antenna, and the first antenna is connected to the second RF front-end module; The first RF front-end module is used to use the target power amplifier to perform power amplification processing on the uplink cellular signal input from the cellular input port or the uplink satellite signal input from the satellite input port, and output the amplified signal to the second RF front-end module; The second RF front-end module is used to output the received uplink cellular signal or uplink satellite signal after amplification to the first antenna for transmission.

3. The electronic device according to claim 2, It is characterized in that The second RF front-end module is provided with a first switch and a cellular receiving port; The second RF front-end module is used to receive the amplified uplink cellular signal or uplink satellite signal through the cellular receiving port; The first switch is used to connect the cellular receiving port and the first antenna when transmitting the uplink cellular signal or the uplink satellite signal, so that the first antenna transmits the uplink cellular signal or the uplink satellite signal after amplification.

4. The electronic device according to claim 2, It is characterized in that The first antenna is an MHB antenna, and the uplink cellular signal is an uplink HB cellular signal.

5. The electronic device according to claim 1, It is characterized in that The RF front-end module includes a second RF front-end module, the target low-noise amplifier includes a first low-noise amplifier, and the second RF front-end module is provided with the first low-noise amplifier; the first antenna includes a main set receiving antenna; The main set receiving antenna is used to receive the main set downlink satellite signal or downlink cellular signal; The second RF front-end module is used to use the first low-noise amplifier to perform power amplification processing on the main set downlink satellite signal or the downlink cellular signal and then send it to the RF transceiver.

6. The electronic device according to claim 5, It is characterized in that The second RF front-end module is provided with a second switch and a first switching switch; the first switching switch is connected to the main receiving antenna and the second switch; The second switch is used to connect the first low noise amplifier and the first switching switch when the main set receiving antenna receives the main set downlink satellite signal, so as to transmit the main set downlink satellite signal transmitted through the first switching switch to the first low noise amplifier.

7. The electronic device according to claim 5, It is characterized in that The second RF front-end module is provided with a third switch, and the third switch is connected to the main receiving antenna; The third switch is used to connect the first low noise amplifier and the main set receiving antenna when the main set receiving antenna receives the main set downlink satellite signal, so as to transmit the main set downlink satellite signal to the first low noise amplifier.

8. The electronic device according to claim 2, It is characterized in that The target low noise amplifier includes a second low noise amplifier, the RF front end module also includes a third RF front end module provided with the second low noise amplifier, and the first antenna includes a diversity receiving antenna; The diversity receiving antenna is used to receive the diversity downlink satellite signal or the downlink cellular signal; The second RF front-end module is used to output the diversity downlink satellite signal or the downlink cellular signal to the third RF front-end module; The third RF front-end module is used to use the second low-noise amplifier to perform power amplification processing on the diversity downlink satellite signal or the downlink cellular signal and then send it to the RF transceiver.

9. The electronic device according to claim 8, It is characterized in that The second RF front-end module is used for outputting the diversity downlink satellite signal from the first target output port to the third RF front-end module when the diversity receiving antenna receives the diversity downlink satellite signal; The third RF front-end module is used to receive the diversity downlink satellite signal through the first target antenna port, and after the diversity downlink satellite signal is output from the first built-in port through the first built-in switching switch, receive the diversity downlink satellite signal through the second built-in port; and use the second low-noise amplifier connected to the second built-in port to power amplify the diversity downlink satellite signal.

10. The electronic device according to claim 8, It is characterized in that The second RF front-end module is provided with a fourth switch and a first satellite output port; the fourth switch is connected to the diversity receiving antenna; The fourth switch is used to connect the first satellite output port and the diversity receiving antenna when the diversity receiving antenna receives the diversity downlink satellite signal, so as to output the diversity downlink satellite signal from the first satellite output port to the third RF front-end module; The third RF front-end module is used to receive the diversity downlink satellite signal through the second built-in port, and use the second low-noise amplifier connected to the second built-in port to perform power amplification processing on the diversity downlink satellite signal.

11. The electronic device according to any one of claims 1 to 10, It is characterized in that The target low noise amplifier includes a third low noise amplifier; the RF front-end module includes a fourth RF front-end module provided with the third low noise amplifier, and the antenna module includes a first MIMO receiving antenna connected to the fourth RF front-end module; The first MIMO receiving antenna is used to receive the first MIMO downlink satellite signal or the downlink cellular signal; The fourth RF front-end module is used to use the third low-noise amplifier to perform power amplification processing on the first MIMO downlink satellite signal or the downlink cellular signal and then send the amplified signal to the RF transceiver.

12. The electronic device according to claim 11, It is characterized in that The fourth RF front-end module is provided with a fifth switch and a second switching switch; the second switching switch is connected to the first MIMO receiving antenna and the fifth switch; The fifth switch is used to connect the third low noise amplifier and the second switch when the first MIMO receiving antenna receives the first MIMO downlink satellite signal, so as to transmit the first MIMO downlink satellite signal transmitted through the second switch to the third low noise amplifier.

13. The electronic device according to claim 11, It is characterized in that The fourth RF front-end module is provided with a sixth switch; the sixth switch is connected to the first MIMO receiving antenna; The sixth switch is used to connect the third low noise amplifier and the first MIMO receiving antenna when the first MIMO receiving antenna receives the first MIMO downlink satellite signal, so as to transmit the first MIMO downlink satellite signal to the third low noise amplifier.

14. The electronic device according to claim 11, It is characterized in that The target low noise amplifier includes a fourth low noise amplifier; the RF front end module also includes a fifth RF front end module provided with the fourth low noise amplifier; the antenna module includes a second MIMO receiving antenna; The second MIMO receiving antenna is used to receive a second MIMO downlink satellite signal or the downlink cellular signal; The fourth RF front-end module is used to output the second MIMO downlink satellite signal or the downlink cellular signal to the fifth RF front-end module; The fifth RF front-end module is used to use the fourth low-noise amplifier to perform power amplification processing on the second MIMO downlink satellite signal or the downlink cellular signal and then send it to the RF transceiver.

15. The electronic device according to claim 14, It is characterized in that The fourth RF front-end module is used for outputting the second MIMO downlink satellite signal to the fifth RF front-end module through the second target output port when the second MIMO receiving antenna receives the second MIMO downlink satellite signal; The fifth RF front-end module is used to receive the second MIMO downlink satellite signal through the second target antenna port, and after the second MIMO downlink satellite signal is output from the third built-in port through the second built-in switching switch, receive the second MIMO downlink satellite signal through the fourth built-in port; and use the fourth low-noise amplifier connected to the fourth built-in port to power amplify the second MIMO downlink satellite signal.

16. The electronic device according to claim 14, It is characterized in that The fourth RF front-end module is provided with a seventh switch and a second satellite output port; the seventh switch is connected to the second MIMO receiving antenna; The seventh switch is used to connect the second satellite output port and the second MIMO receiving antenna when the second MIMO receiving antenna receives the second MIMO downlink satellite signal, so as to output the second MIMO downlink satellite signal from the second satellite output port to the fifth RF front-end module; The fifth RF front-end module is used to receive the second MIMO downlink satellite signal through the fourth built-in port, and use the fourth low-noise amplifier connected to the fourth built-in port to perform power amplification processing on the second MIMO downlink satellite signal.

17. The electronic device according to claim 14, It is characterized in that The first MIMO receiving antenna and the second MIMO receiving antenna are MHB antennas.

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