Handheld communication terminal

Abstract

The invention provides a handheld communication terminal which is characterized in that a first satellite signal is received through a mobile transmission port in a mobile satellite communication mode, or a second satellite signal is received through a carrier transmission port in a carrier satellite communication mode, and the first satellite signal is processed by a first radio frequency processing unit and transmitted to a main control unit; or the main control unit executes target application program generation and sends a first baseband signal to the first radio frequency processing unit, and in the mobile satellite communication mode, the first radio frequency processing unit generates a first radio frequency signal and transmits the first radio frequency signal through the mobile transmission port; or in the carrier satellite communication mode, the first radio frequency processing unit generates a second radio frequency signal and transmits the second radio frequency signal through the carrier transmission port. In this way, compatibility of the mobile satellite communication mode and the carrier satellite communication mode is achieved in the handheld communication terminal.

Description

Technical Field

[0001] This application belongs to the technical field of satellite communication equipment, and particularly relates to a handheld communication terminal. Background Art

[0002] The Tiantong-1 satellite mobile communication system is a satellite mobile communication system independently developed and constructed in China, which consists of a space segment, a ground segment, and user communication terminals. The existing handheld communication terminals based on the Tiantong-1 satellite mobile communication system mainly provide voice, short message, and positioning functions for users, and are mainly applied to environments without basic communication facilities or where basic communication facilities are severely damaged, such as emergency disaster relief, field operations, maritime search and rescue, and outdoor exploration.

[0003] The existing handheld communication terminals based on the Tiantong-1 satellite mobile communication system have a single usage mode, basically for single-person carrying and using, and cannot be connected to vehicle antennas for use, so the applicable scenarios are relatively limited. Summary of the Invention

[0004] This application provides a handheld communication terminal, aiming to achieve the compatibility of mobile satellite communication mode and vehicle satellite communication mode in the handheld communication terminal.

[0005] In a first aspect, this application provides a handheld communication terminal, including a main control unit, a first radio frequency processing unit, a mobile transmission port, and a vehicle transmission port;

[0006] The main control unit is configured to receive a mode selection signal, and switch the current working mode between the mobile satellite communication mode and the vehicle satellite communication mode according to the mode selection signal; and, execute a target application program to generate a corresponding first baseband signal, and output the first baseband signal to the first radio frequency processing unit;

[0007] The first radio frequency processing unit is configured to receive a first satellite signal from the mobile transmission port in the mobile satellite communication mode, and transmit the first satellite signal to the main control unit; or, in the vehicle satellite communication mode, receive a second satellite signal from the vehicle transmission port, and transmit the second satellite signal to the main control unit; or, in the mobile satellite communication mode, receive the first baseband signal from the main control unit, convert the first baseband signal into a first radio frequency signal, and output the first radio frequency signal to the mobile transmission port; or, in the vehicle satellite communication mode, receive the first baseband signal from the main control unit, convert the first baseband signal into a second radio frequency signal, and output the second radio frequency signal to the vehicle transmission port.

[0008] In a second aspect, the present application provides a handheld communication terminal, including a terminal housing, in which a main control circuit and a first radio frequency processing circuit are arranged; a first through hole and a second through hole are formed in the terminal housing, a mobile transmission port is arranged in the first through hole, and a vehicle transmission port is arranged in the second through hole;

[0009] The main control circuit is configured to receive a mode selection signal and switch the current working mode between a mobile satellite communication mode and a vehicle satellite communication mode according to the mode selection signal; and execute a target application program to generate a corresponding first baseband signal and output the first baseband signal to the first radio frequency processing unit;

[0010] The first radio frequency processing circuit is configured to receive a first satellite signal from the mobile transmission port in the mobile satellite communication mode and transmit the first satellite signal to the main control unit; or, configured to receive a second satellite signal from the vehicle transmission port in the vehicle satellite communication mode and transmit the second satellite signal to the main control unit; or, configured to receive the first baseband signal from the main control unit in the mobile satellite communication mode, convert the first baseband signal into a first radio frequency signal, and output the first radio frequency signal to the mobile transmission port; or, configured to receive the first baseband signal from the main control unit in the vehicle satellite communication mode, convert the first baseband signal into a second radio frequency signal, and output the second radio frequency signal to the vehicle transmission port.

[0011] It can be seen that in the present application, in the mobile satellite communication mode, the first satellite signal and the third satellite signal are received through the mobile transmission port, or in the vehicle satellite communication mode, the second satellite signal and the fourth satellite signal are received through the vehicle transmission port, and are respectively processed by the first radio frequency processing unit and the second radio frequency processing unit and transmitted to the main control unit; or the main control unit executes the target application program to generate and send the first baseband signal and the second baseband signal to the first radio frequency processing unit and the second radio frequency processing unit. In the mobile satellite communication mode, the first radio frequency processing unit and the second radio frequency processing unit respectively generate the first radio frequency signal and the third radio frequency signal and transmit them through the mobile transmission port; or, in the vehicle satellite communication mode, the first radio frequency processing unit and the second radio frequency processing unit respectively generate the second radio frequency signal and the fourth radio frequency signal and transmit them through the vehicle transmission port. In this way, the compatibility of the mobile satellite communication mode and the vehicle satellite communication mode is realized in the handheld communication terminal. Description of the Drawings

[0012] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0013] Figure 1 It is a schematic diagram of the communication connection of the handheld communication terminal provided by the embodiment of the present application in a mobile scenario;

[0014] Figure 2 It is a schematic diagram of the communication connection of the handheld communication terminal provided by the embodiment of the present application in a vehicle scenario;

[0015] Figure 3 It is a schematic diagram of the structure of the handheld communication terminal provided by the embodiment of the present application;

[0016] Figure 4 It is a schematic diagram of the structure and connection of the audio unit and the main control unit provided by the embodiment of the present application;

[0017] Figure 5 It is a schematic diagram of the structure of the power supply unit provided by the embodiment of the present application;

[0018] Figure 6 It is a schematic diagram of the structure of the human-computer interaction unit provided by the embodiment of the present application. Detailed implementation manners

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0020] The terms "first", "second", etc. in the specification and claims of the present application and the above accompanying drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, systems, products or devices.

[0021] References to "embodiments" in this specification mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] First, the relevant terms involved in the present application will be introduced below.

[0023] Tiantong-1 satellite mobile communication system: It is a satellite mobile communication system independently developed and constructed by China, consisting of a space segment, a ground segment, and user communication terminals. The existing handheld communication terminals based on the Tiantong-1 satellite mobile communication system on the market mainly provide voice, SMS, and positioning functions for users, and are mainly applied to environments without basic communication facilities or where basic communication facilities have been severely damaged, such as emergency disaster relief, field operations, maritime search and rescue, and outdoor exploration.

[0024] BeiDou satellite navigation system (BeiDou(COMPASS)Navigation Satellite System): It is a global satellite navigation system that China is implementing independently with independent development and operation. The BeiDou satellite navigation system consists of three parts: a space segment, a ground segment, and a user segment. The space segment includes 5 geostationary orbit satellites and 30 non-geostationary orbit satellites. The ground segment includes several ground stations such as a master control station, an injection station, and a monitoring station. The user segment includes BeiDou user terminals and terminals compatible with other satellite navigation systems.

[0025] Currently, the existing handheld communication terminals based on the Tiantong-1 satellite mobile communication system have a single usage mode, mainly for single-person carrying and use, and cannot be connected to vehicle antennas for use, so the applicable scenarios are relatively limited.

[0026] To solve the above problems, an embodiment of the present application provides a handheld communication terminal. The handheld communication terminal can be applied to scenarios of mobile satellite communication and vehicle satellite communication. It can receive a first satellite signal and a third satellite signal through a mobile transmission port in the mobile satellite communication mode, or receive a second satellite signal and a fourth satellite signal through a vehicle transmission port in the vehicle satellite communication mode, and process them respectively through a first radio frequency processing unit and a second radio frequency processing unit, and transmit them to the main control unit; or the main control unit executes a target application program to generate and send a first baseband signal and a second baseband signal to the first radio frequency processing unit and the second radio frequency processing unit, and in the mobile satellite communication mode, the first radio frequency processing unit and the second radio frequency processing unit respectively generate a first radio frequency signal and a third radio frequency signal to be transmitted through the mobile transmission port; or, in the vehicle satellite communication mode, the first radio frequency processing unit and the second radio frequency processing unit respectively generate a second radio frequency signal and a fourth radio frequency signal to be transmitted through the vehicle transmission port. In this way, the compatibility of the mobile satellite communication mode and the vehicle satellite communication mode is achieved in the handheld communication terminal. This solution can be applied to a variety of scenarios, including but not limited to the application scenarios mentioned above.

[0027] The following introduces the system architecture involved in the embodiments of the present application.

[0028] The present application provides a handheld communication terminal, including a terminal housing, in which a main control circuit and a first radio frequency processing circuit are provided; a first through hole and a second through hole are opened on the terminal housing, a mobile transmission port is provided in the first through hole, and a vehicle transmission port is provided in the second through hole.

[0029] Among them, the main control circuit is configured to receive a mode selection signal, and switch the current working mode between the mobile satellite communication mode and the vehicle satellite communication mode according to the mode selection signal; and execute a target application program to generate corresponding first and second baseband signals, and output the first baseband signal to the first radio frequency processing unit and the second baseband signal to the second radio frequency processing unit.

[0030] The first radio frequency processing circuit is configured to receive a first satellite signal from a mobile transmission port in the mobile satellite communication mode and transmit the first satellite signal to the main control unit; or, configured to receive a second satellite signal from a vehicle transmission port in the vehicle satellite communication mode and transmit the second satellite signal to the main control unit; or, configured to receive a first baseband signal from the main control unit in the mobile satellite communication mode, convert the first baseband signal into a first radio frequency signal, and output the first radio frequency signal to the mobile transmission port; or, configured to receive the first baseband signal from the main control unit in the vehicle satellite communication mode, convert the first baseband signal into a second radio frequency signal, and output the second radio frequency signal to the vehicle transmission port.

[0031] In a possible embodiment, the handheld communication terminal further includes a second radio frequency processing circuit; the main control circuit further executes a target application program to generate a corresponding second baseband signal and output the second baseband signal to the second radio frequency processing unit; the second radio frequency processing circuit is configured to receive a third satellite signal from a mobile transmission port in the mobile satellite communication mode and transmit the third satellite signal to the main control unit; or, configured to receive a fourth satellite signal from a vehicle transmission port in the vehicle satellite communication mode and transmit the fourth satellite signal to the main control unit; or, configured to receive the second baseband signal from the main control unit in the mobile satellite communication mode, convert the second baseband signal into a third radio frequency signal, and output the third radio frequency signal to the mobile transmission port; or, configured to receive the second baseband signal from the main control unit in the vehicle satellite communication mode, convert the baseband signal into a fourth radio frequency signal, and output the fourth radio frequency signal to the vehicle transmission port.

[0032] This application also provides a satellite system, which includes a ground station, a satellite, and the above-mentioned handheld communication terminal. As Figure 1 shown, when used in a mobile scenario, a composite antenna (such as the Tiantong + Beidou composite antenna in Figure 1 ) can be connected to the mobile transmission port of the handheld communication terminal (such as terminals 1 and 2 in Figure 1 ) to receive the composite antenna signal and perform corresponding communication. As Figure 2 shown, in the application scenario on a vehicle, the vehicle transmission port of the handheld communication terminal (such as terminals 1 and 2 in Figure 2 ) can be connected to the antenna on the vehicle (such as the vehicle / marine mobile satellite communication antenna in Figure 2 ) to achieve corresponding communication through the vehicle's antenna. In addition, it can also be connected to a fax machine (such as Figure 2Connect the fax machine 1 and fax machine 2 in it to achieve the corresponding fax function; among them, the handheld communication terminal can be powered by a power adapter, and the power supply voltage can be 24V.

[0033] The following introduces the specific method in detail.

[0034] Please refer to Figure 3 , this application also provides a handheld communication terminal, including a main control unit 10, a first radio frequency processing unit 20, a mobile transmission port 81, and a vehicle transmission port 91;

[0035] The main control unit 10 is configured to receive a mode selection signal, and switch the current working mode between a mobile satellite communication mode and a vehicle satellite communication mode according to the mode selection signal; and, execute a target application program to generate a corresponding first baseband signal, and output the first baseband signal to the first radio frequency processing unit 20;

[0036] The first radio frequency processing unit 20 is configured to receive a first satellite signal from the mobile transmission port 81 in the mobile satellite communication mode and transmit the first satellite signal to the main control unit 10; or, configured to receive a second satellite signal from the vehicle transmission port 91 in the vehicle satellite communication mode and transmit the second satellite signal to the main control unit 10; or, configured to receive the first baseband signal from the main control unit 10 in the mobile satellite communication mode, convert the first baseband signal into a first radio frequency signal, and output the first radio frequency signal to the mobile transmission port 81; or, configured to receive the first baseband signal from the main control unit 10 in the vehicle satellite communication mode, convert the first baseband signal into a second radio frequency signal, and output the second radio frequency signal to the vehicle transmission port 91.

[0037] In specific implementation, the handheld communication terminal includes two working modes: a mobile satellite communication mode and a vehicle satellite communication mode. Among them, the mobile satellite communication mode: applied to the single-person carrying use scenario, equipped with a mobile antenna 82, providing one or more of functions such as voice, SMS, low-speed data service, and positioning and navigation functions, and having the same usage method as the existing handheld satellite communication terminals on the market. The vehicle satellite communication mode: applied to usage scenarios in vehicles such as cars and ships, connected to the vehicle antenna 92 in the vehicle, providing one or more of functions such as voice, SMS, positioning and navigation, data transmission service, and fax service, and providing reliable communication services for users inside a vehicle or a ship running at high speed.

[0038] Specifically, at least one application can run in the handheld communication terminal. The at least one application corresponds to functions such as voice, SMS, low-speed data service, positioning and navigation, data transmission service, fax service, etc. When the corresponding function needs to be used, the corresponding application can be opened. The main control unit 10 runs the application opened by the user, generates a corresponding first baseband signal after performing corresponding operations, and then outputs the first baseband signal to the first radio frequency processing unit 20. The first radio frequency processing unit 20 processes the first baseband signal according to the current working mode to obtain a corresponding radio frequency signal. For example, when in the mobile satellite communication mode, the first radio frequency processing unit 20 converts the first baseband signal into a first radio frequency signal and outputs the first radio frequency signal to the mobile transmission port 81. The mobile transmission port 81 transmits the first radio frequency signal to the first satellite through the connected mobile antenna 82. When in the vehicle satellite communication mode, the first radio frequency processing unit 20 converts the first baseband signal into a second radio frequency signal and outputs the first radio frequency signal to the vehicle transmission port 91. The vehicle transmission port 91 transmits the second radio frequency signal to the first satellite through the connected vehicle antenna 92.

[0039] In addition, the handheld communication terminal can also receive the first satellite signal of the first satellite through the mobile antenna 82 in the mobile satellite communication mode, then access the first satellite signal into the first radio frequency processing unit 20 through the mobile transmission port 81, process the first satellite signal and then output it to the main control unit 10. The main control unit 10 processes the first satellite signal to obtain the first information in the first satellite signal. Or, in the vehicle satellite communication mode, receive the second satellite signal of the first satellite through the vehicle antenna 92, then access the second satellite signal into the first radio frequency processing unit 20 through the vehicle transmission port 91. The first radio frequency processing unit 20 processes the second satellite signal and then outputs it to the main control unit 10. The main control unit 10 processes the second satellite signal to obtain the second information in the second satellite signal.

[0040] Specifically, the user can input a corresponding mode selection signal. When the main control unit 10 receives the mode selection signal, mode switching is performed. For example, when the main control unit 10 receives the mode selection signal and is in the mobile satellite communication mode, the working mode is switched to the vehicle satellite communication mode; when the main control unit 10 receives the mode selection signal and is in the vehicle satellite communication mode, the working mode is switched to the mobile satellite communication mode. In addition, two mode signals can be set, that is, the mode selection signal can also include a first mode selection signal and a second mode selection signal; if the main control unit 10 receives the first mode selection signal, it is switched to the mobile satellite communication mode; if the main control unit 10 receives the second mode selection signal, it is switched to the vehicle satellite communication mode. It can be understood that the main control unit 10 can also detect at least one of the mobile transmission port 81 and the vehicle transmission port 91 to generate a mode selection signal, and then perform mode switching according to the mode selection signal.

[0041] Specifically, please refer to Figure 4 , the main control unit 10 includes a main control chip 11, a power management chip 13, an audio codec chip 12, a memory chip 15, a storage chip 14, and a clock chip 16. The main control chip 11 is the control core of the main control unit 10. It loads and runs the operating system and application programs through the memory chip 15 and the storage chip 14 to implement functions such as communication service processing, display control, audio control, and peripheral interface control; at the same time, through programmable control, it implements functions such as channel control, baseband digital signal processing, and wireless network protocol processing, and supports loading and running the communication waveforms of the mobile satellite communication mode and the vehicle satellite communication mode on demand through software radio. Among them, the clock chip 16 uses a temperature-compensated crystal oscillator to provide a clock signal for the main control chip 11.

[0042] It can be understood that the first satellite can be a Tian Tong satellite, but is not limited to a Tian Tong satellite.

[0043] It can be seen that in this embodiment, in the mobile satellite communication mode, the first satellite signal and the third satellite signal are received through the mobile transmission port 81, or in the vehicle satellite communication mode, the second satellite signal and the fourth satellite signal are received through the vehicle transmission port 91, and are respectively processed by the first radio frequency processing unit 20 and the second radio frequency processing unit 30 and then transmitted to the main control unit 10; or the main control unit 10 executes the target application program to generate and send the first baseband signal and the second baseband signal to the first radio frequency processing unit 20 and the second radio frequency processing unit 30. In the mobile satellite communication mode, the first radio frequency processing unit 20 and the second radio frequency processing unit 30 respectively generate the first radio frequency signal and the third radio frequency signal and transmit them through the mobile transmission port 81; or, in the vehicle satellite communication mode, the first radio frequency processing unit 20 and the second radio frequency processing unit 30 respectively generate the second radio frequency signal and the fourth radio frequency signal and transmit them through the vehicle transmission port 91. In this way, the mobile satellite communication mode and the vehicle satellite communication mode are compatible in the handheld communication terminal. Compared with the existing handheld satellite communication terminals, the handheld communication terminal of the present application has stronger applicability. It can not only be carried and used by a single person, but also be connected to the vehicle antenna 92 in the vehicle such as a moving car / ship and used inside the vehicle. After connecting to a fax machine, it can also realize the function of fax sending and receiving, and at the same time support a higher data transmission rate and stronger versatility.

[0044] In a possible embodiment, the first radio frequency processing unit 20 includes a radio frequency transceiver unit 21, a first radio frequency switch 22, a first radio frequency channel 23 and a second radio frequency channel 24;

[0045] The radio frequency transceiver unit 21 is connected to the main control unit 10 and is configured to convert the baseband signal into the first radio frequency signal in the mobile satellite communication mode and convert the baseband signal into the second radio frequency signal in the vehicle satellite communication mode; or, it is configured to transmit the first satellite signal or the second satellite signal to the main control unit 10;

[0046] The radio frequency switch switching unit is connected to the radio frequency transceiver unit 21 and is configured to receive the first switching signal sent by the main control unit 10 in the mobile satellite communication mode and connect the radio frequency transceiver unit 21 to the first radio frequency channel 23 according to the first switching signal; or, it is configured to receive the second switching signal sent by the main control unit 10 in the vehicle satellite communication mode and connect the radio frequency transceiver unit 21 to the second radio frequency channel 24 according to the second switching signal;

[0047] The first radio frequency channel 23 is configured to output the first radio frequency signal to the mobile transmission port 81; or, it is configured to receive the first satellite signal from the mobile transmission port 81 and output the first satellite signal to the radio frequency transceiver unit 21 through the radio frequency switch;

[0048] The second radio frequency channel 24 is configured to output the second radio frequency signal to the vehicle transmission port 91; or, it is configured to receive the second satellite signal from the vehicle transmission port 91 and output the second satellite signal to the radio frequency transceiver unit 21 via the radio frequency switch.

[0049] In a specific implementation, the radio frequency processing unit adopts a dual-channel design and mainly consists of a radio frequency transceiver unit 21, a radio frequency switch switching unit, a first radio frequency channel 23, and a second radio frequency channel 24. The radio frequency transceiver unit 21 includes a radio frequency transceiver chip and mainly completes the up-conversion and down-conversion of baseband signals and digital sampling. The radio frequency switch switching unit realizes the switching of the radio frequency transceiver channel between the radio frequency transceiver chip and the first radio frequency channel 23 or the second radio frequency channel 24; both the first radio frequency channel 23 and the second radio frequency channel 24 are composed of a transmission processing unit and a reception processing unit.

[0050] In a specific implementation, the radio frequency transceiver unit 21 is directly connected to the main control unit 10 and conducts data interaction with the main control unit 10. When the main control unit 10 sends a first baseband signal, the radio frequency transceiver unit 21 receives the first baseband signal, then converts the first baseband signal into a radio frequency signal, and then outputs the radio frequency signal to the radio frequency channel conducted by the radio frequency switch. For example, when in the mobile satellite communication mode, the radio frequency channel conducted by the radio frequency switch is the first radio frequency channel 23, then the radio frequency transceiver unit 21 converts the first baseband signal into a first radio frequency signal, outputs the first radio frequency signal to the first radio frequency channel 23, and the first radio frequency channel 23 sends it to the mobile transmission port 81, and then the mobile antenna 82 sends the first radio frequency signal to the first satellite. When in the vehicle satellite communication mode, the radio frequency channel conducted by the radio frequency switch is the second radio frequency channel 24, then the radio frequency transceiver unit 21 converts the first baseband signal into a second radio frequency signal, outputs the second radio frequency signal to the second radio frequency channel 24, and the second radio frequency channel 24 sends it to the vehicle transmission port 91, and then the vehicle antenna 92 sends the second radio frequency signal to the first satellite.

[0051] Specifically, the first radio frequency channel 23 includes a first transmission processing unit 231, a first reception processing unit 232, and a duplexer 233. The first transmission processing unit 231 includes a first Babylonian circuit 2311, a first filtering circuit 2312, and a first amplification circuit 2313. The first reception processing unit 232 includes a second Babylonian circuit 2321, a second filtering circuit 2322, and a first low-noise amplifier circuit 2323. The first transmission processing unit 231 is configured to receive the first radio frequency signal, and output it to the mobile transmission port 81 after passing through the first Babylonian circuit 2311, the first filtering circuit 2312, the first amplification circuit 2313, and the duplexer 233. The first reception processing unit 232 is configured to receive the first satellite signal from the mobile transmission port 81, and output the first satellite signal to the radio frequency transceiver unit 21 after passing through the duplexer 233, the first low-noise amplifier circuit 2323, the second filtering circuit 2322, the second Babylonian circuit 2321, and the radio frequency switch.

[0052] The second radio frequency channel 24 includes a second transmission processing unit 241, a second reception processing unit 242, and a switch and detection unit 243. The second transmission processing unit 241 includes a third Babylonian circuit 2411, a third filtering circuit 2412, and a second amplification circuit 2413. The second reception processing unit 242 includes a fourth Babylonian circuit 2421, a fourth filtering circuit 2422, and a second low-noise amplifier circuit 2423. The second transmission processing unit 241 is configured to receive the second radio frequency signal, and output it to the vehicle transmission port 91 after passing through the third Babylonian circuit 2411, the third filtering circuit 2412, the second amplification circuit 2413, and the switch and detection unit 243. The second reception processing unit 242 is configured to receive the second satellite signal from the vehicle transmission port 91, and output the second satellite signal to the radio frequency transceiver unit 21 after passing through the switch and detection unit 243, the second low-noise amplifier circuit 2423, the fourth filtering circuit 2422, the fourth Babylonian circuit 2421, and the radio frequency switch.

[0053] It can be seen that in this embodiment, two sets of radio frequency signals, two sets of transmission ports, and two sets of antennas are provided. The mobile satellite communication mode and the vehicle satellite communication mode are respectively adapted through the two sets of radio frequency signals, two sets of transmission ports, and two sets of antennas, so as to achieve the compatibility of the mobile satellite communication mode and the vehicle satellite communication mode in the handheld communication terminal.

[0054] In a possible embodiment, the handheld communication terminal of the present application can be compatible with multiple satellites, and a composite antenna is used to simultaneously receive multiple satellite signals. At the same time, a satellite signal processing unit adapted to different satellite signals is set to achieve the compatibility of multiple satellite signals.

[0055] Specifically, the handheld communication terminal further includes a second radio frequency processing unit 30; the main control unit 10 further executes a target application program to generate a corresponding second baseband signal and outputs the second baseband signal to the second radio frequency processing unit 30; the second radio frequency processing unit 30 is configured to receive a third satellite signal from a mobile transmission port 81 in a mobile satellite communication mode and transmit the third satellite signal to the main control unit 10; or, is configured to receive a fourth satellite signal from a vehicle transmission port 91 in a vehicle satellite communication mode and transmit the fourth satellite signal to the main control unit 10; or, is configured to receive the second baseband signal from the main control unit 10 in a mobile satellite communication mode, convert the second baseband signal into a third radio frequency signal, and output the third radio frequency signal to the mobile transmission port 81; or, is configured to receive the second baseband signal from the main control unit 10 in a vehicle satellite communication mode, convert the baseband signal into a fourth radio frequency signal, and output the fourth radio frequency signal to the vehicle transmission port 91.

[0056] Taking two satellites as an example for illustration.

[0057] The two satellites are the first satellite and the second satellite, where the first satellite may be a Tian Tong satellite and the second satellite may be a Bei Dou satellite. The mobile antenna 82 is a composite antenna for the first satellite and the second satellite, and can simultaneously receive the first satellite signal of the first satellite and the third satellite signal of the second satellite in the mobile satellite communication mode; similarly, the vehicle communication is also a composite antenna for the first satellite and the second satellite, and can simultaneously receive the second satellite signal of the first satellite and the fourth satellite signal of the second satellite in the vehicle satellite communication mode.

[0058] The first satellite signal and the second satellite signal of the first satellite are received by the first radio frequency processing unit 20, and the first radio frequency signal and the second radio frequency signal are transmitted to the first satellite. Since the satellite signal reception and radio frequency signal transmission processes of the first satellite have been described in detail above, only the satellite signal reception and radio frequency signal transmission processes of the second satellite will be described next.

[0059] In a specific implementation, when the mobile antenna 82 and the vehicle antenna 92 are antennas for multiple satellites, in the mobile satellite communication mode, the third satellite signal of the second satellite is received through the mobile antenna 82; and in the vehicle satellite communication mode, the fourth satellite signal of the second satellite is received through the vehicle antenna 92. Then, after being processed by the second radio frequency processing unit 30, it is output to the main control unit 10.

[0060] Specifically, the second radio frequency processing unit 30 includes a second radio frequency switch 32 and a satellite signal processing module 31. The second radio frequency switch 32 is configured to receive a third satellite signal obtained by the mobile antenna 82 via the mobile transmission port 81 in the mobile satellite communication mode; or receive a fourth satellite signal obtained by the vehicle antenna 92 via the vehicle transmission port 91 in the vehicle satellite communication mode. The satellite signal processing module 31 is configured to receive and process the third satellite signal or the fourth satellite signal, and output the processed fourth satellite signal to the main control unit 10.

[0061] In a specific implementation, in the mobile satellite communication mode, the main control unit 10 outputs a switching signal to the second radio frequency switch 32 to connect the mobile antenna 82 to the satellite signal processing module 31 through the second radio frequency switch 32. When the mobile antenna 82 receives the third satellite signal, the third satellite signal is transmitted to the satellite signal processing module 31 through the second radio frequency switch 32. The satellite signal processing module 31 processes the third satellite signal and then outputs the processed third satellite signal to the main control unit 10.

[0062] In addition, when the main control unit 10 generates a second baseband signal in the mobile satellite communication mode, the satellite signal processing module 31 converts the second baseband signal into a third radio frequency signal, and outputs the third radio frequency signal to the mobile antenna 82 through the second radio frequency switch 32 and the mobile transmission port 81. Then, the mobile antenna 82 transmits the third radio frequency signal to the second satellite.

[0063] Further, in the vehicle satellite communication mode, the main control unit 10 outputs a switching signal to the second radio frequency switch 32 to connect the vehicle antenna 92 to the satellite signal processing module 31 through the second radio frequency switch 32. When the vehicle antenna 92 receives the fourth satellite signal, the fourth satellite signal is transmitted to the satellite signal processing module 31 through the second radio frequency switch 32. The satellite signal processing module 31 processes the fourth satellite signal and then outputs the processed fourth satellite signal to the main control unit 10.

[0064] In addition, when the main control unit 10 generates a second baseband signal in the vehicle satellite communication mode, the satellite signal processing module 31 converts the second baseband signal into a fourth radio frequency signal, and outputs the fourth radio frequency signal to the vehicle antenna 92 through the second radio frequency switch 32 and the vehicle transmission port 91. Then, the vehicle antenna 92 transmits the fourth radio frequency signal to the second satellite.

[0065] It can be seen that in this embodiment, the satellite signal of the second satellite can be received through the second radio frequency processing unit 30, and at the same time, the second baseband signal at the output end of the main control unit 10 is converted into a corresponding radio frequency signal and transmitted to the second satellite, realizing information interaction with the second satellite.

[0066] In a possible embodiment, refer to Figure 5 , the power supply unit 70 is configured to access a power supply voltage, convert the power supply voltage into a first power supply voltage and a second power supply voltage, and output the first power supply voltage to the first radio frequency processing unit 20 for power supply; and output the second power supply voltage to the main control unit 10, the first radio frequency processing unit 20, the second radio frequency processing unit 30, and the interface unit 40 for power supply.

[0067] In a specific implementation, the handheld communication terminal further includes a power supply unit 70. The main function of the power supply unit 70 is to convert the battery voltage and the externally input power supply voltage, provide the required power supply voltage for each functional circuit module of the terminal, and ensure normal power supply of the device. The power supply unit 70 of the terminal of the present invention mainly consists of an overvoltage / short-circuit protection circuit 71, a fifth filter circuit 72, a charging circuit 75, a switching circuit 73, and various types of buck circuits (such as the first buck circuit 74 and the second buck circuit 76 in the figure). The structural block diagram of the power supply unit 70 is as Figure 5 shown. Among them, the main control unit 10 can control the switching circuit 73 through an enable signal, and further control the output of the power supply unit 70. The splitter is connected to the main control unit through a serial port, and thus can communicate with the splitter 233 through the main control unit 10, and then the main control unit 10 controls the splitter 233.

[0068] In a specific implementation, in the mobile satellite communication mode, the battery provided in the handheld communication terminal is used for power supply. The power supply unit 70 accesses the battery voltage of the battery 77, and after being processed by the charging circuit 75 and the second buck circuit 76, it is output to the main control unit 10, the first radio frequency processing unit 20, the second radio frequency processing unit 30, and the interface unit 40 for power supply. Exemplarily, the voltage of the battery can be 7.2V, and a 4V voltage can be obtained after being stepped down by the second buck circuit 76. At the same time, the battery can be charged and the terminal can be powered by connecting an external 24V power adapter.

[0069] In the vehicle satellite communication mode, it is necessary to connect a power adapter or the vehicle power on the vehicle to output a power supply voltage through the power adapter 78 or the vehicle power. After receiving the power supply voltage, the power supply unit 70 outputs a first power supply voltage to the splitter 233 through the fifth filter circuit 72 and the switching circuit 73 to power the vehicle antenna 92; a second power supply voltage is obtained through the fifth filter circuit 72, the first buck circuit 74, the charging circuit 75, and the second buck circuit 76, and is output to the main control unit 10, the first radio frequency processing unit 20, the second radio frequency processing unit 30, and the interface unit 40 for power supply. Exemplarily, the voltage of the power adapter and the vehicle power can be 24V, the first power supply voltage can be 24V, and the second power supply voltage can be 4V.

[0070] It is understandable that the voltages such as 24V, 7.2V, and 4V described in this embodiment are only for illustration. Other voltages that can achieve the corresponding power supply function also fall within the protection scope of this embodiment. In addition, the power-consuming units in the figure are not limited to the splitter 233, the main control unit 10, the first radio frequency processing unit 20, the sensor sub-unit 65, and the satellite signal processing module 31. The power supply unit 70 can also supply power to other units and modules that need power supply, which is not limited here.

[0071] It can be seen that in this embodiment, by processing the power supply voltage for the power supply voltage or battery voltage, the function of supplying power to each component, unit, and module of the handheld communication terminal is realized.

[0072] In a possible embodiment, it includes an interface unit 40. The interface unit 40 includes the mobile transmission port 81, the vehicle transmission port 91, and at least one external device connection port; the mobile transmission port 81 is configured to be connected to the mobile antenna 82 to receive the first satellite signal and / or the third satellite signal through the mobile antenna 82, or to send the first radio frequency signal and / or the third radio frequency signal through the mobile antenna 82; the vehicle transmission port 91 is configured to be connected to the vehicle antenna 92 to receive the second satellite signal and / or the fourth satellite signal through the vehicle antenna 92, or to send the second radio frequency signal and / or the fourth radio frequency signal through the vehicle antenna 92; the at least one external device connection port is connected to the main control unit 10 and is configured to connect an external device to the main control unit 10.

[0073] In specific implementation, the interface unit 40 mainly includes the mobile transmission port 81, the vehicle transmission port 91, and at least one external device connection port. Among them, the at least one external device connection port may include a battery interface 41, a power supply interface, a data interface, a TF card interface 42, and a satellite SIM card interface 43; the power supply interface and the data interface can be combined into the same interface (such as the power / data integrated interface 44 in the figure), and the power supply interface is used to access an external power supply to achieve external power supply. Specifically, the interface summary table (i.e., Table 1) of the interface unit 40 is as follows.

[0074] Table 1 Interface Summary Table

[0075]

[0076] It can be seen that the battery can be connected to the power supply unit 70 through the battery interface 41 for charging the handheld communication terminal. The battery can be a lithium battery. The TF card interface 42 can be equipped with a flash memory card (microSD) and connected to the main control unit 10 as a storage unit. The satellite SIMI card interface can be equipped with a Tian Tong No. 1 satellite SIM card to realize the access of Tian Tong satellite signals. The power interface is connected to a power adapter or an external DC power supply through a conversion cable. The data interface includes a USB interface, a headphone interface, and a fax machine interface. In this way, the handheld communication terminal can be connected to USB devices, headphone devices, and fax machines to realize corresponding functions. The vehicle transmission port 91 is connected to a Tian Tong vehicle / shipborne + Beidou composite antenna (supporting one-line communication). The mobile transmission port 81 is connected to a Tian Tong + Beidou composite antenna.

[0077] In a possible embodiment, please refer to Figure 3 and Figure 4 , the handheld communication terminal further includes an audio unit 50, and the audio unit 50 includes at least one audio device;

[0078] The audio unit 50 is configured to input a first audio signal through the at least one audio device and output the first audio signal to the main control unit 10; or, it is configured to receive a second audio signal output by the main control unit 10 through the at least one audio device and play the second audio signal.

[0079] In a specific implementation, the audio unit 50 is mainly used to implement audio input and output functions and includes at least one audio device. Among them, the at least one audio device includes, but is not limited to, a headphone 51, a microphone 52, a speaker 53, and a receiver 54. Further, the main control unit 10 includes an audio codec chip 12, and the audio unit 50 further includes a power amplifier circuit; when audio information is parsed from satellite signals, it is encoded and decoded through the codec unit to obtain an audio signal, and finally the audio signal is amplified through the audio power amplifier circuit 55 and output to the speaker 53 for playback. In addition, corresponding audio signals can be input through the earphone microphone of the microphone 52 and the headphone 51, and after being processed by the main control unit 10, a radio frequency signal is generated for transmission; it can also be that corresponding audio signals are input through the earphone microphone of the microphone 52 and the headphone 51 to realize voice control or voice input of the application program in the main control unit 10.

[0080] It can be seen that in this embodiment, the audio input and output functions are realized through the audio unit 50.

[0081] In a possible embodiment, please refer to Figure 6 , including a human-computer interaction unit 60, and the human-computer interaction unit 60 includes at least one interaction device;

[0082] The human-machine interaction unit 60 is configured to input first interaction information through the at least one interaction device and output the first interaction information to the main control unit 10; or, it is configured to receive second interaction information output by the main control unit 10 through the at least one interaction device and display the second interaction information.

[0083] In a specific implementation, the human-machine interaction unit 60 is responsible for realizing the information transfer and communication between the user and the handheld communication terminal. Among them, the human-machine interaction unit 60 includes but is not limited to a display screen 61, a touch screen 62, buttons 66, an indicator light 63, a camera 64, and a sensor sub-unit 65. Among them, the buttons 66 include one or more of a power on / off button, a volume adjustment button, a PTT intercom button, an answer button, and a hang-up button; the sensor sub-unit 65 includes but is not limited to one or more of a light sensor, a distance sensor, a geomagnetic sensor, a gyroscope, and an acceleration sensor; the camera includes but is not limited to a front camera and a rear camera; the indicator light includes a three-color light (such as red, green, and yellow lights).

[0084] Specifically, the display screen 61: is used to display information such as images and texts and is the main way for users to obtain information. The touch screen 62: As the main input device, users can input instructions, select menus, etc. through the touch screen 62. The buttons 66: are mainly composed of a power switch, volume adjustment, answer, and hang-up buttons. The sensor sub-unit 65: The terminal is built-in with an acceleration sensor, a gyroscope, a light sensor, etc., which are used to detect information such as the motion state of the terminal and environmental light to provide a more intelligent interaction experience.

[0085] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can easily think of changes or replacements without departing from the spirit and scope of the present invention, and various modifications and alterations can be made, including combinations of the above different functions and implementation steps, including software and hardware implementation manners, all within the protection scope of the present invention.

Claims

1. A handheld communication terminal, characterized in that, It includes a main control unit, a first radio frequency processing unit, a mobile transmission port, and a vehicle transmission port; The main control unit is configured to receive a mode selection signal and switch the current working mode between a mobile satellite communication mode and a vehicle satellite communication mode according to the mode selection signal; And, execute a target application program to generate a corresponding first baseband signal and output the first baseband signal to the first radio frequency processing unit; The first radio frequency processing unit is configured to receive a first satellite signal from the mobile transmission port in the mobile satellite communication mode and transmit the first satellite signal to the main control unit; or, in the vehicle satellite communication mode, receive a second satellite signal from the vehicle transmission port and transmit the second satellite signal to the main control unit; or, in the mobile satellite communication mode, receive the first baseband signal from the main control unit, convert the first baseband signal into a first radio frequency signal, and output the first radio frequency signal to the mobile transmission port; Or, in the vehicle satellite communication mode, receive the first baseband signal from the main control unit, convert the first baseband signal into a second radio frequency signal, and output the second radio frequency signal to the vehicle transmission port.

2. The handheld communication terminal according to claim 1, wherein It includes an audio unit, and the audio unit includes at least one audio device; The audio unit is configured to input a first audio signal through the at least one audio device and output the first audio signal to the main control unit; or, receive a second audio signal output by the main control unit through the at least one audio device and play the second audio signal.

3. The handheld communication terminal according to claim 1, characterized in that, It includes a human-computer interaction unit, and the human-computer interaction unit includes at least one interaction device; The human-computer interaction unit is configured to input first interaction information through the at least one interaction device and output the first interaction information to the main control unit; Or, receive second interaction information output by the main control unit through the at least one interaction device and display the second interaction information.

4. The handheld communication terminal according to claim 1, wherein, The first radio frequency processing unit includes a radio frequency transceiver unit, a first radio frequency switch, a first radio frequency channel, and a second radio frequency channel; The radio frequency transceiver unit is connected to the main control unit and is configured to convert the baseband signal into the first radio frequency signal in the mobile satellite communication mode and convert the baseband signal into the second radio frequency signal in the vehicle satellite communication mode; Or, transmit the first satellite signal or the second satellite signal to the main control unit; The radio frequency switch is connected to the radio frequency transceiver unit and is configured to receive a first switching signal sent by the main control unit in the mobile satellite communication mode and connect the radio frequency transceiver unit to the first radio frequency channel according to the first switching signal; Or, receive a second switching signal sent by the main control unit in the vehicle satellite communication mode and connect the radio frequency transceiver unit to the second radio frequency channel according to the second switching signal; The first radio frequency channel is configured to output the first radio frequency signal to the mobile transmission port; Alternatively, it is configured to receive the first satellite signal from the mobile transmission port and output the first satellite signal to the RF transceiver unit via the RF switch; The second RF channel is configured to output the second RF signal to the vehicle transmission port; Alternatively, it is configured to receive the second satellite signal from the vehicle transmission port and output the second satellite signal to the RF transceiver unit via the RF switch.

5. The handheld communication terminal according to claim 4, wherein The first RF channel includes a first transmission processing unit, a first reception processing unit, and a diplexer; The first transmission processing unit includes a first Babylonian circuit, a first filtering circuit, and a first amplification circuit, and the first reception processing unit includes a second Babylonian circuit, a second filtering circuit, and a first low-noise amplifier circuit; The first transmission processing unit is configured to receive the first RF signal and output it to the mobile transmission port via the first Babylonian circuit, the first filtering circuit, the first amplification circuit, and the diplexer; The first reception processing unit is configured to receive the first satellite signal from the mobile transmission port and output the first satellite signal to the RF transceiver unit via the diplexer, the first low-noise amplifier circuit, the second filtering circuit, the second Babylonian circuit, and the RF switch.

6. The handheld communication terminal according to claim 4, characterized in that, The second RF channel includes a second transmission processing unit, a second reception processing unit, and a switch and detection unit; The second transmission processing unit includes a third Babylonian circuit, a third filtering circuit, and a second amplification circuit, and the second reception processing unit includes a fourth Babylonian circuit, a fourth filtering circuit, and a second low-noise amplifier circuit; The second transmission processing unit is configured to receive the second RF signal and output it to the vehicle transmission port via the third Babylonian circuit, the third filtering circuit, the second amplification circuit, and the switch and detection unit; The second reception processing unit is configured to receive the second satellite signal from the vehicle transmission port and output the second satellite signal to the RF transceiver unit via the switch and detection unit, the second low-noise amplifier circuit, the fourth filtering circuit, the fourth Babylonian circuit, and the RF switch.

7. The handheld communication terminal according to any one of claims 1 to 6, characterized in that, It further includes a second RF processing unit; The main control unit further executes a target application program to generate a corresponding second baseband signal and output the second baseband signal to the second RF processing unit; The second RF processing unit is configured to receive a third satellite signal from the mobile transmission port in the mobile satellite communication mode and transmit the third satellite signal to the main control unit; or, it is configured to receive a fourth satellite signal from the vehicle transmission port in the vehicle satellite communication mode and transmit the fourth satellite signal to the main control unit; or, it is configured to receive the second baseband signal from the main control unit in the mobile satellite communication mode, convert the second baseband signal into a third RF signal, and output the third RF signal to the mobile transmission port; Alternatively, it is configured to receive the second baseband signal from the master control unit in the vehicle satellite communication mode, convert the baseband signal into a fourth radio frequency signal, and output the fourth radio frequency signal to the vehicle transmission port.

8. The handheld communication terminal according to claim 7, wherein The second radio frequency processing unit includes a second radio frequency switch and a satellite signal processing module; The second radio frequency switch is configured to receive a third satellite signal obtained by a mobile antenna through the mobile transmission port in the mobile satellite communication mode; Alternatively, it is configured to receive a fourth satellite signal obtained by a vehicle antenna through the vehicle transmission port in the vehicle satellite communication mode; The satellite signal processing module is configured to receive and process the third satellite signal or the fourth satellite signal, and output the processed fourth satellite signal to the master control unit.

9. The handheld communication terminal according to claim 7, characterized in that, It includes an interface unit, and the interface unit includes the mobile transmission port, the vehicle transmission port, and at least one external device connection port; The mobile transmission port is configured to be connected to a mobile antenna, receive a first satellite signal and / or a third satellite signal through the mobile antenna, or transmit a first radio frequency signal and / or a third radio frequency signal through the mobile antenna; The vehicle transmission port is configured to be connected to a vehicle antenna, receive a second satellite signal and / or a fourth satellite signal through the vehicle antenna, or transmit a second radio frequency signal and / or a fourth radio frequency signal through the vehicle antenna; The at least one external device connection port is connected to the master control unit and is configured to connect an external device to the master control unit.

10. A handheld communication terminal, characterized in that, It includes a terminal housing, and a master control circuit and a first radio frequency processing circuit are arranged inside the terminal housing; a first through hole and a second through hole are formed on the terminal housing, the mobile transmission port is arranged in the first through hole, and the vehicle transmission port is arranged in the second through hole; The master control circuit is configured to receive a mode selection signal, and switch the current working mode between the mobile satellite communication mode and the vehicle satellite communication mode according to the mode selection signal; In addition, it executes a target application program to generate a corresponding first baseband signal, and outputs the first baseband signal to the first radio frequency processing unit; The first radio frequency processing circuit is configured to receive a first satellite signal from the mobile transmission port in the mobile satellite communication mode and transmit the first satellite signal to the master control unit; alternatively, it is configured to receive a second satellite signal from the vehicle transmission port in the vehicle satellite communication mode and transmit the second satellite signal to the master control unit; alternatively, it is configured to receive the first baseband signal from the master control unit in the mobile satellite communication mode, convert the first baseband signal into a first radio frequency signal, and output the first radio frequency signal to the mobile transmission port; Alternatively, it is configured to receive the first baseband signal from the master control unit in the vehicle satellite communication mode, convert the first baseband signal into a second radio frequency signal, and output the second radio frequency signal to the vehicle transmission port.

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