Communication control method and device of dual-mode satellite communication terminal equipment, terminal equipment and medium

Abstract

The invention discloses a communication control method and device for dual-mode satellite communication terminal equipment, the terminal equipment and a medium, and belongs to the technical field of wireless communication networks. The method comprises the following steps: acquiring connection monitoring information of terminal equipment in a first satellite communication mode; under the condition that the connection monitoring information meets a set condition, switching a satellite communication mode of the terminal equipment from a first satellite communication mode to a second satellite communication mode; sending a short message to a target satellite in a second satellite communication mode; and monitoring satellite state information of the first satellite communication mode in real time in the second satellite communication mode, and switching the satellite communication mode of the terminal equipment to the first satellite communication mode under the condition that the satellite state information meets a preset standard. According to the technical scheme, reasonable selection can be made according to real-time states of satellite communication in two modes, stable connection of satellite communication can be ensured, normal transceiving of satellite communication is ensured, and guarantee is provided for satellite communication of terminal equipment.

Description

Technical Field

[0001] This application belongs to the technical field of wireless communication networks, and particularly relates to a communication control method, device, terminal device and medium for a dual-mode satellite communication terminal device. Background Art

[0002] With the rapid development of technology, various terminal devices have emerged. In communication devices, with the development of satellite communication technology, more and more communication devices are added to the array of satellite communication devices. Although satellite communication has advantages such as not requiring a ground base station and being able to be used in emergency scenarios, however, adopting a single satellite communication mode will lead to problems such as the inability to connect to the satellite, resulting in the abnormal operation of functions, and at the same time, it will affect the stability of communication when dealing with emergencies. Therefore, how to improve the stability of satellite communication and ensure the reasonable operation of communication connections is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0003] The embodiments of this application provide a communication control method, device, terminal device and medium for a dual-mode satellite communication terminal device, aiming to solve the problems that the satellite communication function of current communication devices is unstable and the connection quality cannot be guaranteed. Through the communication control of the dual-mode satellite communication terminal device, this solution can make a reasonable choice according to the real-time status of satellite communication in two modes, ensure the stable connection of satellite communication, ensure the accurate sending and receiving of information in the required scenarios, provide guarantee for the satellite communication of the terminal device, and at the same time, it can also avoid the problem of excessive power consumption of the terminal device due to long-term multiple connections or the inability to make effective satellite calls, and even the inability to communicate effectively until the power runs out.

[0004] In a first aspect, the embodiments of this application provide a communication control method for a dual-mode satellite communication terminal device, and the method includes: Obtain the connection monitoring information of the terminal device in the first satellite communication mode, where the connection monitoring information includes one or more of: the star alignment duration and number of times information, the satellite call channel allocation feedback information, the satellite call connection status information, and the satellite call quality information; When the connection monitoring information meets the set conditions, switch the satellite communication mode of the terminal device from the first satellite communication mode to the second satellite communication mode; Send a short message to the target satellite in the second satellite communication mode, where the short message includes the status information and connection monitoring information of the terminal device; Real-time monitor the satellite status information of the first satellite communication mode in the second satellite communication mode, and when the satellite status information meets the preset standard, switch the satellite communication mode of the terminal device to the first satellite communication mode.

[0005] Further, in the second satellite communication mode, the satellite status information of the first satellite communication mode is monitored in real time. When the satellite status information meets the preset criteria, the satellite communication mode of the terminal device is switched to the first satellite communication mode, including: In the second satellite communication mode, the monitoring module requests the satellite signal strength and / or the satellite channel usage status corresponding to the first satellite communication mode; When the satellite signal strength meets the first preset criteria, the satellite communication mode of the terminal device is switched to the first satellite communication mode; and / or When the satellite channel usage status meets the second preset criteria, the satellite communication mode of the terminal device is switched to the first satellite communication mode.

[0006] Further, the first preset criteria is that the signal strength is greater than the set signal strength threshold within a preset duration; The second preset criteria is that the satellite channel usage status is in a state where channels can be allocated.

[0007] Further, after the satellite communication mode of the terminal device is switched from the first satellite communication mode to the second satellite communication mode, the method further includes: Identifying the movement information of the terminal device; Analyzing the movement information using a time series analysis algorithm to obtain a movement prediction result; Correspondingly, when the satellite status information meets the preset criteria, switching the satellite communication mode of the terminal device to the first satellite communication mode includes: When the satellite status information meets the preset criteria and, when the movement prediction result meets the movement restriction conditions of the first satellite communication mode, switching the satellite communication mode of the terminal device to the first satellite communication mode.

[0008] Further, the movement prediction result meeting the movement restriction conditions of the first satellite communication mode includes: If the movement speed is less than the set threshold and, the movement prediction path meets the condition of no obstacles blocking the satellite signal, it is determined that the movement prediction result meets the movement restriction conditions of the first satellite communication mode.

[0009] Further, after sending a short message to the target satellite in the second satellite communication mode, the method further includes: Identifying the sent short message to determine the satellite communication scenario of the terminal device; If it is a daily communication scenario, switching identification is performed according to the preset criteria; In the case of an emergency communication scenario, perform handover recognition according to a preset emergency communication recovery standard; Correspondingly, when the satellite status information meets the preset standard, switching the satellite communication mode of the terminal device to the first satellite communication mode includes: In an emergency communication scenario, when the satellite status information meets the preset emergency communication recovery standard, switching the satellite communication mode of the terminal device to the first satellite communication mode.

[0010] Further, the first satellite communication mode is the Tiantong satellite call mode; The second satellite communication mode is the Beidou short message communication mode.

[0011] In a second aspect, an embodiment of the present application provides a communication control device for a dual-mode satellite communication terminal device, and the device includes: A connection monitoring information acquisition module, configured to acquire connection monitoring information of the terminal device in the first satellite communication mode, where the connection monitoring information includes one or more of satellite alignment duration and number information, satellite call channel allocation feedback information, satellite call connection status information, and satellite call quality information; A first switching module, configured to switch the satellite communication mode of the terminal device from the first satellite communication mode to the second satellite communication mode when the connection monitoring information meets a set condition; A short message sending module, configured to send a short message to a target satellite in the second satellite communication mode, where the short message includes the status information and connection monitoring information of the terminal device; A second switching module, configured to monitor the satellite status information of the first satellite communication mode in real time in the second satellite communication mode, and switch the satellite communication mode of the terminal device to the first satellite communication mode when the satellite status information meets the preset standard.

[0012] In a third aspect, an embodiment of the present application provides a terminal device, which includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0013] In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0014] In a fifth aspect, an embodiment of the present application provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run a program or instruction to implement the method described in the first aspect.

[0015] In an embodiment of the present application, connection monitoring information of a terminal device in a first satellite communication mode is obtained, where the connection monitoring information includes one or more of: satellite alignment duration and number of times information, satellite call channel allocation feedback information, satellite call connection status information, and satellite call quality information; when the connection monitoring information meets a set condition, the satellite communication mode of the terminal device is switched from the first satellite communication mode to a second satellite communication mode; a short message is sent to a target satellite in the second satellite communication mode, where the short message includes the status information and connection monitoring information of the terminal device; the satellite status information of the first satellite communication mode is monitored in real time in the second satellite communication mode, and when the satellite status information meets a preset standard, the satellite communication mode of the terminal device is switched to the first satellite communication mode. According to this technical solution, through the communication control of the dual-mode satellite communication terminal device, a reasonable choice can be made based on the real-time status of satellite communication in the two modes, which can ensure a stable connection of satellite communication, ensure the accurate sending and receiving of information in the required scenarios, provide guarantee for the satellite communication of the terminal device. At the same time, it can also avoid the problem that the power consumption of the terminal device is too fast due to long-term multiple connections or inability to make effective satellite calls, and even unable to communicate effectively until the power runs out. Description of the Drawings

[0016] Figure 1 is a schematic flowchart of a communication control method for a dual-mode satellite communication terminal device provided in Embodiment 1 of the present application; Figure 2 is a schematic flowchart of a communication control method for a dual-mode satellite communication terminal device provided in Embodiment 2 of the present application; Figure 3 is a schematic structural diagram of a communication control device for a dual-mode satellite communication terminal device provided in Embodiment 3 of the present application; Figure 4 is a schematic structural diagram of a terminal device provided in Embodiment 4 of the present application. Detailed Embodiments

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the following further describes the specific embodiments of this application in detail with reference to the accompanying drawings. It can be understood that the specific embodiments described herein are only for explaining this application and not for limiting this application. Additionally, it should be noted that for ease of description, only the parts related to this application rather than all the content are shown in the drawings. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the operations (or steps) as sequential processes, many of the operations can be implemented in parallel, concurrently, or simultaneously. In addition, the order of the operations can be rearranged. When the operations are completed, the process can be terminated, but there can also be additional steps not included in the drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, and so on.

[0018] The following will clearly describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of this application.

[0019] The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. generally belong to the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0020] The following will, with reference to the accompanying drawings, through specific embodiments and their application scenarios, detail the communication control method, device, terminal device, and medium of the dual-mode satellite communication terminal device provided in the embodiments of this application.

[0021] Embodiment 1 Figure 1 It is a schematic flowchart of the communication control method of the dual-mode satellite communication terminal device provided in Embodiment 1 of this application. As Figure 1 shown, it specifically includes the following steps: S101. Obtain the connection monitoring information of the terminal device in the first satellite communication mode, where the connection monitoring information includes one or more of the following: satellite acquisition duration and number of times information, satellite call channel allocation feedback information, satellite call connection status information, and satellite call quality information. First, this application is applicable to scenarios where a terminal device is used for satellite communication. The terminal devices in this solution include, but are not limited to, smart terminals and satellite communication terminals, and the terminal device has dual-mode satellite communication capabilities, that is, it can communicate with two different satellite systems. Based on the above usage scenarios, it can be understood that the execution subject of this application can be the terminal device.

[0022] A terminal device can be various devices with satellite communication functions, such as satellite phones, satellite locators, smart terminals, etc. It is the main body of the entire communication process and is used to achieve communication interaction with satellites.

[0023] The first satellite communication mode can be a specific satellite communication method. For example, it can be the Tiantong satellite communication mode, etc. It stipulates technical parameters such as the communication protocol, frequency range, and signal modulation method between the terminal device and the satellite.

[0024] The connection monitoring information can be a series of information used to reflect the connection status and communication quality between the terminal device and the satellite. Specifically, it can include, but is not limited to, the following aspects of information: Satellite acquisition duration and number of times information. The satellite acquisition duration refers to the information of the duration consumed by the terminal device to search for satellite signals and establish a connection with the satellite. For example, if the terminal device faces a certain direction in the sky for a certain period of time before it can search for satellite signals and establish a connection, then this duration is the satellite acquisition duration information, which can be recorded by the high-precision clock module inside the terminal device. The number of satellite acquisitions refers to the cumulative number of times the terminal device successfully establishes a connection with the satellite. These information help to understand the frequency and stability of the communication between the terminal device and the satellite.

[0025] Satellite call channel allocation feedback information can be the relevant information returned by the satellite after allocating a call channel to the terminal device, including whether the channel is successfully allocated, the allocated channel number, the bandwidth of the channel, and the available duration, etc. This is crucial for the terminal device to understand its resource occupancy situation in the satellite communication network.

[0026] Satellite call connection status information can describe the current status of the satellite call connection, such as connection success, connection failure, connection interruption, and connection waiting, etc. By monitoring the connection status information, problems occurring during the call can be detected in a timely manner.

[0027] Satellite call quality information is an indicator for measuring the quality of satellite calls, such as the signal-to-noise ratio, bit error rate, and packet loss rate of voice. Using advanced audio signal processing algorithms and signal analysis techniques to obtain this information can accurately reflect the clarity and stability of the call.

[0028] In this solution, the terminal device collects and analyzes relevant connection monitoring information from the satellite communication link through its built-in communication module according to the protocol and signal processing mechanism of the first satellite communication mode.

[0029] S102, when the connection monitoring information meets the set conditions, switch the satellite communication mode of the terminal device from the first satellite communication mode to the second satellite communication mode; Among them, the set conditions can be rules or thresholds set in advance according to different application scenarios and communication requirements. For example, when the number of satellite call connection failures exceeds a certain number, such as more than 5 times, or when the bit error rate in the satellite call quality information exceeds a certain threshold, such as more than 1%, the set conditions are met. These conditions are dynamically adjustable and can be optimized according to the actual situation.

[0030] The second satellite communication mode can be another satellite communication method different from the first satellite communication mode. For example, it can be the Beidou satellite communication mode, etc., with different communication protocols, signal characteristics, and network architectures.

[0031] The terminal device can, according to the comparison result of the connection monitoring information and the set conditions, when the set conditions are met, indicating that the connection of the first satellite communication mode is not stable enough or cannot be connected, then it can switch from the first satellite communication mode to the second satellite communication mode. During the switching process, intelligent algorithms can be used to optimize the switching process to minimize the switching time and the impact on communication and improve the switching speed. For example, important data can be cached in advance to ensure that the switching process is completed quickly.

[0032] S103, send a short message to the target satellite of the second satellite communication mode, where the short message includes the status information and connection monitoring information of the terminal device; Among them, the target satellite of the second satellite communication mode can be a specific satellite with which the terminal device communicates in the second satellite communication mode. The target satellite is selected according to the communication requirements and the scheduling of the satellite network.

[0033] A short message is a message form with relatively small data volume and concise format, used to transmit key information in satellite communication.

[0034] The status information of the terminal device can be information reflecting the working status of the terminal device itself, such as device power, storage capacity, and software version. By monitoring this information in real time, the operation of the device can be understood, providing a basis for device management and maintenance.

[0035] According to the communication protocol and signal transmission mechanism of the second satellite communication mode, the terminal device encodes the short message containing the status information and connection monitoring information and sends it to the target satellite through a wireless signal.

[0036] In this solution, the connection monitoring information in the first satellite communication mode is also sent to the target satellite, which can be used by the target satellite to understand the urgency of the current satellite connection and the previous data, facilitating the target satellite to determine the priority of the current satellite connection, so as to achieve fast access and provide satellite communication services for users.

[0037] This solution sends a short message containing the status information and connection monitoring information of the terminal device to the target satellite, enabling the satellite to grasp the situation of the terminal device in real time, facilitating resource scheduling and management of the satellite network, and also providing important data references for subsequent communication mode switching and optimization.

[0038] S104, in the second satellite communication mode, the satellite status information of the first satellite communication mode is monitored in real time. When the satellite status information meets the preset criteria, the satellite communication mode of the terminal device is switched to the first satellite communication mode.

[0039] In the second satellite communication mode, it can refer to the working status of the second satellite communication mode currently adopted by the terminal device, including the execution of the communication protocol, signal reception and transmission, etc.

[0040] The satellite status information of the first satellite communication mode can be information reflecting the working status and communication capabilities of the satellite in the first satellite communication mode, such as satellite signal strength, channel availability, and load conditions. This solution can obtain this information through signal monitoring technology and data analysis algorithms.

[0041] The preset criteria can be pre-set conditions and thresholds for determining whether to switch back to the first satellite communication mode. For example, when the satellite signal strength of the first satellite communication mode reaches a certain level and the channel availability is good, the preset criteria are met.

[0042] The terminal device can utilize the built-in signal monitoring module to collect the signals sent by the satellite in the first satellite communication mode in real time, analyze and process the signals, and extract the satellite status information. An intelligent monitoring algorithm is adopted to dynamically adjust the monitoring parameters according to different communication environments and requirements, improving the accuracy and timeliness of monitoring. When the satellite status information of the first satellite communication mode detected meets the preset standard, the terminal device converts the communication mode from the second satellite communication mode back to the first satellite communication mode by performing signaling interaction and parameter adjustment with the satellite. Similarly, an intelligent algorithm is used to optimize the switching process to ensure the stability and efficiency of the switching process.

[0043] By monitoring the satellite status information of the first satellite communication mode in real time in the second satellite communication mode and switching back to the first satellite communication mode when the preset standard is met, dynamic switching between the two communication modes is achieved, enabling the terminal device to select the optimal communication mode according to the satellite status and communication requirements, improving the flexibility of satellite communication, and enhancing the user's communication experience.

[0044] In the embodiment of the present application, through the communication control of the dual-mode satellite communication terminal device, a reasonable choice can be made according to the real-time status of satellite communication in the two modes, ensuring the stable connection of satellite communication, ensuring the accurate sending and receiving of information in the required scenarios, providing guarantee for the satellite communication of the terminal device. At the same time, it can also avoid the problem that the power consumption of the terminal device is too fast due to long-term multiple connections or inability to conduct effective satellite calls, and even unable to communicate effectively until the power runs out.

[0045] In one embodiment, optionally, the first satellite communication mode is the Tiantong satellite call mode; The second satellite communication mode is the Beidou short message communication mode.

[0046] The Tiantong satellite call mode is realized relying on the Tiantong satellite system. The Tiantong satellite system is a huge satellite communication network composed of multiple geostationary orbit satellites and several medium orbit satellites, aiming to provide high-quality voice communication services for users worldwide. The Tiantong satellite call mode uses specific frequency bands for signal transmission and generally adopts modulation and demodulation technologies such as Quadrature Phase Shift Keying (QPSK), 16-Quadrature Amplitude Modulation (16QAM), etc. to improve the signal transmission efficiency and anti-interference ability. The Tiantong satellite call mode ensures the stability and reliability of voice calls, supports multiple communication functions such as ordinary voice calls and emergency calls. At the same time, in order to adapt to different application scenarios, the Tiantong satellite call mode also has a certain encryption mechanism to ensure the security of communication content.

[0047] The Beidou short message communication mode is one of the unique features of the Beidou satellite navigation system. In addition to providing high-precision positioning and navigation services, the Beidou satellite navigation system also has the ability of short message communication, which can realize the short message transmission between terminals or between terminals and the ground control center. The Beidou short message communication mode utilizes the coverage of the Beidou satellite constellation to achieve communication globally or in specific regions. Its communication frequency band has certain particularities to meet the communication requirements in different environments. During the communication process, the terminal device encapsulates the information to be sent into a short message according to a specific format and forwards it to the target terminal or the ground control center through the satellite. The length and format of the short message have certain limitations and usually can contain information such as text, numbers, and simple instructions. The Beidou short message communication mode has important application value in some remote areas, at sea, mountainous areas and other places with weak communication infrastructure, providing users with a reliable communication means.

[0048] The satellite call channel described above is the communication channel allocated by the satellite for the terminal device to conduct voice calls in the Tiantong satellite call mode. Each channel has a specific frequency range and bandwidth. Different terminal devices communicate through their respective allocated channels to avoid mutual interference. The allocation of the satellite call channel is determined according to the request of the terminal device and the resource status of the satellite network. The satellite will allocate the available channels to the appropriate terminal devices according to a certain algorithm and strategy to ensure the quality and efficiency of communication. The bandwidth size of the channel will affect the quality of the voice call. The larger the bandwidth, the more voice data can be transmitted and the better the call quality.

[0049] In this technical solution, through the reasonable application of the Tiantong satellite call mode and the Beidou short message communication mode and the intelligent switching between the modes, combined with the accurate acquisition, sending and monitoring of various types of information, the terminal device can flexibly select the optimal communication mode under different communication environments and requirements. This not only improves the stability of communication, ensures the quality of voice calls and information transmission, but also gives full play to the advantages of the two satellite communication modes, expands the communication coverage and application scenarios, and provides users with a more efficient, convenient and secure communication service.

[0050] In one embodiment, optionally, in the second satellite communication mode, the satellite status information of the first satellite communication mode is monitored in real time. When the satellite status information meets the preset standard, the satellite communication mode of the terminal device is switched to the first satellite communication mode, including: In the second satellite communication mode, the monitoring module requests the satellite signal strength and / or the satellite channel usage status corresponding to the first satellite communication mode; When the satellite signal strength meets the first preset standard, the satellite communication mode of the terminal device is switched to the first satellite communication mode; and / or When the satellite channel usage status meets the second preset criterion, switch the satellite communication mode of the terminal device to the first satellite communication mode.

[0051] The monitoring module is a combined hardware and software module in the terminal device dedicated to real-time monitoring of information related to the satellite communication mode. The hardware part may include a highly sensitive signal receiving antenna, a signal amplifier, a filter, etc., for capturing and processing satellite signals; the software part contains signal analysis algorithms, data processing programs, etc., which can analyze the received signals and extract key information such as satellite signal strength and satellite channel usage status. The monitoring module needs to have the characteristics of high precision, high reliability, and low power consumption to ensure continuous and stable operation without affecting the normal operation of other functions of the terminal device.

[0052] The satellite signal strength can be the power of the signal transmitted by the satellite when it reaches the terminal device, usually measured in decibels milliwatt (dBm). The signal strength is one of the important indicators to measure the quality of the communication link between the satellite and the terminal device. Generally speaking, the higher the signal strength, the smaller the interference and attenuation during signal transmission, and the better the communication quality, such as being able to support higher data transmission rates, clearer voice calls, etc. When the signal strength is below a certain threshold, it may cause problems such as unstable communication connections, data loss, or degraded call quality.

[0053] The satellite channel usage status mainly describes the occupancy and availability of the satellite channel. It includes information such as the number of channels occupied by the terminal device, the busyness of the channels, the number and distribution of remaining available channels. The satellite channel usage status is crucial for the terminal device to decide whether to switch back to the first satellite communication mode. Because if the channel resources are tight, even if the satellite signal strength is sufficient, it may not be able to guarantee good communication quality. In this case, the terminal device may choose to continue to stay in the current Beidou short message communication mode.

[0054] The first preset criterion is a specific threshold or condition about the satellite signal strength preset in advance, used to judge whether the requirement for switching the satellite communication mode of the terminal device back to the Tiantong satellite call mode is met. This criterion is determined according to factors such as actual communication requirements, the performance of the satellite system, and the characteristics of the terminal device. For example, it is set that when the satellite signal strength reaches above -80 dBm and lasts for a certain period of time, such as 5 minutes, it is considered to meet the first preset criterion. The reasonable setting of the first preset criterion can ensure mode switching under good enough signal quality to obtain a better communication experience.

[0055] The second preset criterion is specific conditions or thresholds set for the usage status of satellite channels, used to determine whether it is suitable to switch the satellite communication mode of the terminal device back to the first satellite communication mode. It may involve restrictions on the channel busy degree. For example, when the number of occupied channels is lower than a certain proportion of the total number of channels, such as 70%, or the number of remaining available channels meets a certain quantity, such as at least 5 available channels, it is considered to meet the second preset criterion. The formulation of the second preset criterion helps to perform mode switching when satellite channel resources are sufficient, ensuring stable communication services can be obtained after the switch.

[0056] In this solution, in the second satellite communication mode, the monitoring module of the terminal device continuously receives and analyzes the signals sent by the satellite corresponding to the first satellite communication mode. The monitoring process includes real-time acquisition of signals, and operations such as filtering, amplifying, and demodulating the acquired signals through signal processing algorithms to extract key information such as satellite signal strength and satellite channel usage status. Analyze and process the satellite signals corresponding to the first satellite communication mode to determine information such as satellite signal strength and satellite channel usage status. Specifically, the monitoring module will perform operations such as spectrum analysis and power detection on the received satellite signals to parse relevant information from the signals. For example, determine the satellite signal strength by analyzing the power magnitude of the signal, and obtain the satellite channel usage status by monitoring the signaling data in the signal. When the satellite signal strength meets the first preset criterion or the satellite channel usage status meets the second preset criterion, the terminal device starts to execute the conversion operation from the second satellite communication mode to the first satellite communication mode. For example, the terminal device stops the current short message communication task according to the protocol of the Beidou short message communication mode, and releases communication resources related to Beidou satellites, such as channel connections, buffer spaces, etc. Then, the terminal device starts the Tiantong satellite communication module and performs initialization settings, including searching for Tiantong satellite signals, synchronizing with Tiantong satellites, and identity authentication operations. After verifying the identity of the terminal device, Tiantong satellites allocate corresponding communication resources, such as satellite call channels, to it. Finally, the terminal device adjusts its own communication parameters, such as transmit power, modulation method, etc., to meet the requirements of the Tiantong satellite call mode and complete the entire mode switching process. During the switching process, in order to ensure communication continuity, the terminal device may adopt data caching and recovery technologies to ensure that important data and communication status are not lost during the mode switching process.

[0057] This solution enables the terminal device to intelligently select the optimal communication mode according to the actual situation such as satellite signal strength and channel usage status by monitoring the satellite status information of the first satellite communication mode in real time in the second satellite communication mode and performing mode switching according to a preset standard. This effectively improves the flexibility and adaptability of the communication system, avoids problems such as communication interruption or quality degradation caused by blindly switching modes in inappropriate situations, and also makes full use of the advantages of different satellite communication modes, ensuring the stability and efficiency of communication, and providing users with more reliable communication services.

[0058] In one embodiment, optionally, the first preset standard is that the signal strength is greater than a set signal strength threshold within a preset duration. The second preset standard is that the satellite channel usage status is in a state where the channel can be allocated.

[0059] Among them, the set signal strength threshold can be a specific signal strength value determined according to factors such as actual communication requirements and satellite system performance. The unit is usually decibel milliwatt (dBm), which can be used as one of the criteria for judging whether the satellite signal strength meets the switching condition. For example, the set signal strength threshold may be -90 dBm. When the satellite signal strength is always greater than -90 dBm within a preset duration, it meets the signal strength requirement for switching back to the first satellite communication mode. The setting of this threshold directly affects the timing of mode switching and communication quality. Too high or too low a threshold may lead to unreasonable mode switching and affect the user's communication experience.

[0060] The allocable channel, in the first satellite communication mode, refers to the satellite communication channel in the current satellite system that is unoccupied or can be reallocated for use by the terminal device. The satellite system manages and allocates channel resources. When a terminal device requests communication, it selects a suitable channel from the allocable channels and allocates it to the device. The status of the allocable channel includes information such as the idle state of the channel, the available bandwidth of the channel, and the signal quality of the channel. For example, when there are multiple unused channels in the satellite system and the indicators such as the bandwidth and signal quality of these channels meet certain requirements, it is considered that these channels are in the state of allocable channels. At this time, if the satellite channel usage status meets the second preset standard, the terminal device can switch back to the first satellite communication mode and obtain the corresponding channel resources.

[0061] This solution clarifies the duration and specific threshold that the signal strength needs to meet in the first preset standard, as well as the allocable channel status of the satellite channel usage status in the second preset standard, enabling the terminal device to have a clearer and more specific basis when determining whether to switch back from the second satellite communication mode to the first satellite communication mode. This precise standard setting can effectively avoid unreasonable mode switching caused by vague standards and improve the accuracy of mode switching. By performing intelligent switching based on the stability of the satellite signal strength and the availability of channel resources, it can ensure that the terminal device switches to the Tiantong satellite call mode at an appropriate time, fully utilizing its voice call advantages, while ensuring the stability and quality of communication and enhancing the user's communication experience. In addition, reasonable standard setting also helps to optimize the resource allocation of the satellite system and improve the operating efficiency of the entire communication system.

[0062] In one embodiment, optionally, after sending a short message to the target satellite in the second satellite communication mode, the method further includes: Perform message recognition on the sent short message to determine the satellite communication scenario of the terminal device; If it is a daily communication scenario, perform switching recognition according to the preset standard; If it is an emergency communication scenario, perform switching recognition according to the preset emergency communication recovery standard; Correspondingly, in the case where the satellite status information meets the preset standard, switching the satellite communication mode of the terminal device to the first satellite communication mode includes: In an emergency communication scenario, when the satellite status information meets the preset emergency communication recovery standard, switch the satellite communication mode of the terminal device to the first satellite communication mode.

[0063] Among them, message recognition can be a process of analyzing, understanding, and classifying the content of the sent short message. With the help of natural language processing, keyword matching and other technologies, analyze the text, numbers and other information in the short message to determine the communication scenario it represents. For example, if the message contains keywords such as "daily report" and "ordinary communication", it may be determined as a daily communication scenario; if it contains words such as "help" and "emergency situation", it may be determined as an emergency communication scenario.

[0064] The satellite communication scenario can be used to describe the specific situation and requirements of the terminal device during satellite communication. Common ones include daily communication scenarios and emergency communication scenarios. The daily communication scenario covers general communication activities such as ordinary voice calls, text message exchanges, and data transmissions; the emergency communication scenario is the communication requirement in the event of emergencies such as natural disasters and accident rescues, where the timeliness of communication is extremely high.

[0065] The preset emergency communication recovery standard can be a special handover standard specifically formulated for emergency communication scenarios. Compared with the preset standard, its requirements are more stringent to ensure rapid and reliable communication recovery in emergency situations. For example, it can be that the satellite signal strength is greater than -80 dBm for 2 consecutive minutes, and there are at least 5 allocable channels, while having higher requirements for signal stability and communication latency.

[0066] The emergency communication scenario can specifically be a satellite communication scenario in the face of emergencies or urgent situations. Such as earthquakes, fires, and maritime distress, etc. In this case, the timeliness and reliability of communication are related to life safety and the effectiveness of rescue operations. In such a scenario, it is necessary to prioritize ensuring smooth communication and quickly restore an effective communication connection.

[0067] In the emergency communication scenario, the preset standard can be lowered to complete the handover to the first satellite communication mode as long as possible, in order to provide the most efficient communication method and ensure the timeliness of emergency communication.

[0068] This technical solution, by adopting the method of different handover standards based on different communication scenarios, significantly improves the flexibility and adaptability of the satellite communication system. In the daily communication scenario, handover recognition is carried out according to the preset standard, which can ensure communication quality while reasonably optimizing the allocation of satellite resources, avoiding unnecessary mode handovers, and reducing system energy consumption. In the emergency communication scenario, the setting of the preset emergency communication recovery standard ensures rapid communication recovery at critical moments, greatly improving the ability of emergency rescue and response to emergencies, and enhancing the practicality of the entire satellite communication system.

[0069] Embodiment 2 Figure 2 It is a schematic flowchart of the communication control method of the dual-mode satellite communication terminal device provided in Embodiment 2 of the present application. This solution makes a better improvement to the above embodiment. Specifically, the improvement is as follows: After switching the satellite communication mode of the terminal device from the first satellite communication mode to the second satellite communication mode, the method further includes: identifying the movement information of the terminal device; analyzing the movement information by using a time series analysis algorithm to obtain a movement prediction result; correspondingly, when the satellite state information meets the preset standard, switching the satellite communication mode of the terminal device to the first satellite communication mode, including: when the satellite state information meets the preset standard, and when the movement prediction result meets the movement restriction condition of the first satellite communication mode, switching the satellite communication mode of the terminal device to the first satellite communication mode. As Figure 2 shown, it specifically includes the following steps: S201, Obtain the connection monitoring information of the terminal device in the first satellite communication mode, where the connection monitoring information includes one or more of: satellite acquisition duration and number of times information, satellite call channel allocation feedback information, satellite call connection status information, and satellite call quality information; S202, When the connection monitoring information meets the set conditions, switch the satellite communication mode of the terminal device from the first satellite communication mode to the second satellite communication mode; S203, Send a short message to the target satellite in the second satellite communication mode, where the short message includes the status information and connection monitoring information of the terminal device; S204, Identify the movement information of the terminal device; Among them, the movement information may refer to data information related to the movement of the terminal device in space. It includes content in multiple dimensions. For example, the real-time position information of the terminal device, such as longitude, latitude, altitude, etc., can be obtained through the satellite positioning module built into the terminal. This solution can calculate the movement speed information by calculating the change in position at different times, and can also determine the movement direction information by judging the change trend of the position. In addition, it may also include the acceleration information of the movement, etc. These information can comprehensively describe the movement state of the terminal device.

[0070] S205, Analyze the movement information using a time series analysis algorithm to obtain a movement prediction result; The time series analysis algorithm can be a mathematical algorithm for processing data sequences arranged in chronological order, and can analyze the movement information of the terminal device. Common time series analysis algorithms include autoregressive models, moving average models, autoregressive moving average models, and more complex seasonal decomposition, trend analysis and other methods. Through these algorithms, the potential laws in the movement information can be mined to predict the future movement trend of the terminal device.

[0071] The movement prediction result can be an estimate of the future movement state of the terminal device obtained by analyzing the movement information using a time series analysis algorithm. Specifically, the movement prediction result can include information such as the predicted future position, speed change trend, and change in movement direction. For example, it is predicted that the terminal device will move northeast in the next 30 minutes, etc.

[0072] S206, Real-time monitor the satellite status information of the first satellite communication mode in the second satellite communication mode; S207, When the satellite status information meets the preset standard, and when the movement prediction result meets the movement restriction conditions of the first satellite communication mode, switch the satellite communication mode of the terminal device to the first satellite communication mode.

[0073] The mobile restriction conditions for the first satellite communication mode can be the constraint conditions regarding the mobile state of the terminal device set for the first satellite communication mode. These conditions are formulated according to the characteristics and performance requirements of the Tiantong satellite call mode. For example, it may be stipulated that the moving speed of the terminal device cannot exceed a certain value, such as 100 km / h, because too high a moving speed may cause rapid changes in satellite signals, affecting the call quality, or it may be stipulated that the moving range of the terminal device cannot exceed a specific area, such as near the boundary of the effective coverage area of the satellite, to ensure a stable communication connection.

[0074] This solution determines whether to switch the communication mode by identifying the movement information of the terminal device and performing time series analysis to obtain the movement prediction result, and then combining the satellite status information and the mobile restriction conditions of the first satellite communication mode, enabling the satellite communication system to more intelligently adapt to the mobile state of the terminal device. While the satellite status meets the switching conditions, considering whether the movement prediction result meets the requirements of the first satellite communication mode avoids the situation of poor communication quality after switching due to the rapid movement or exceeding the appropriate range of the terminal device. By setting it in this way, this solution can effectively improve the communication stability, optimize the utilization of satellite resources, enhance the communication experience of users in different mobile scenarios, and avoid the problem of ineffective switching that cannot be used after switching, affecting the normal communication of the terminal device.

[0075] Based on the above embodiments, optionally, the movement prediction result meeting the mobile restriction conditions of the first satellite communication mode includes: If the moving speed is less than the set threshold, and the predicted movement path is free of obstacles blocking satellite signals, it is determined that the movement prediction result meets the mobile restriction conditions of the first satellite communication mode.

[0076] The set threshold can be a numerical standard set in advance by humans for measuring the moving speed. This threshold is determined according to the characteristics and performance requirements of the first satellite communication mode. When the moving speed of the terminal device is less than this set threshold, it meets the mobile restriction conditions of the first satellite communication mode. For example, the set threshold is 50 km / h. If the moving speed of the terminal device is less than 50 km / h, it meets certain conditions in terms of the moving speed factor.

[0077] Obstacles blocking satellite signals can refer to objects that can block or weaken the propagation of satellite signals. In satellite communication, common obstacles blocking satellite signals include high-rise buildings, mountains, dense forests, or large buildings, etc. When there are such obstacles on the predicted movement path of the terminal device, the satellite signal may be blocked and weakened or interrupted, thus affecting the communication quality of the first satellite communication mode.

[0078] This solution makes the handover decision of the satellite communication mode more reasonable by clarifying the specific criteria for the mobile prediction result to meet the mobile restriction conditions of the first satellite communication mode, that is, the moving speed is less than the set threshold and there are no obstacles blocking satellite signals in the mobile prediction path. By considering the influence of the moving speed and moving path on satellite signals, it can effectively avoid problems such as a decline in communication quality and connection interruption after switching to the first satellite communication mode due to the terminal device moving too fast or there being signal blockages in the moving path. This can ensure the stability of communication in the Tiantong satellite call mode.

[0079] Embodiment 3 Figure 3 It is a schematic structural diagram of a communication control device of a dual-mode satellite communication terminal device provided in Embodiment 3 of this application. As Figure 3 shown, the device includes: A connection monitoring information acquisition module 301, configured to acquire connection monitoring information of the terminal device in the first satellite communication mode, where the connection monitoring information includes one or more of: satellite acquisition duration and number information, satellite call channel allocation feedback information, satellite call connection status information, and satellite call quality information; A first switching module 302, configured to switch the satellite communication mode of the terminal device from the first satellite communication mode to the second satellite communication mode when the connection monitoring information meets the set conditions; A short message sending module 303, configured to send a short message to the target satellite in the second satellite communication mode, where the short message includes the status information and connection monitoring information of the terminal device; A second switching module 304, configured to monitor the satellite status information of the first satellite communication mode in real time in the second satellite communication mode, and switch the satellite communication mode of the terminal device to the first satellite communication mode when the satellite status information meets the preset criteria.

[0080] In an embodiment of the present application, a connection monitoring information acquisition module is configured to acquire connection monitoring information of a terminal device in a first satellite communication mode, where the connection monitoring information includes one or more of: satellite acquisition duration and number of times information, satellite call channel allocation feedback information, satellite call connection status information, and satellite call quality information; a first switching module is configured to switch the satellite communication mode of the terminal device from the first satellite communication mode to a second satellite communication mode when the connection monitoring information meets a set condition; a short message sending module is configured to send a short message to a target satellite in the second satellite communication mode, where the short message includes status information and connection monitoring information of the terminal device; a second switching module is configured to monitor the satellite status information of the first satellite communication mode in real time in the second satellite communication mode, and switch the satellite communication mode of the terminal device to the first satellite communication mode when the satellite status information meets a preset standard. Through the communication control of the dual-mode satellite communication terminal device, a reasonable choice can be made according to the real-time status of satellite communication in the two modes, ensuring a stable connection of satellite communication, ensuring accurate sending and receiving of information in the required scenarios, providing guarantee for the satellite communication of the terminal device. At the same time, it can also avoid the problem that the power consumption of the terminal device is too fast due to long-term multiple connections or inability to make effective satellite calls, and even unable to communicate effectively until the power runs out.

[0081] The communication control device of the dual-mode satellite communication terminal device in the embodiment of the present application may be a device, or a component, an integrated circuit, or a chip in the terminal. The device may be a mobile terminal device or a non-mobile terminal device. Exemplarily, the mobile terminal device may be a mobile phone, a tablet computer, a laptop computer, a handheld computer, a vehicle-mounted terminal device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc., and the non-mobile terminal device may be a server, a Network Attached Storage (NAS), a personal computer (PC), a television (TV), a teller machine, or a self-service machine, etc. The embodiment of the present application does not make specific limitations.

[0082] The communication control device of the dual-mode satellite communication terminal device in the embodiment of the present application may be a device with an operating system. The operating system may be an Android operating system, an IOS operating system, or other possible operating systems. The embodiment of the present application does not make specific limitations.

[0083] The communication control device of the dual-mode satellite communication terminal device provided by the embodiments of the present application can implement each process achieved in the above-mentioned Embodiments 1 to 4. To avoid repetition, it will not be elaborated here.

[0084] Embodiment 4 As Figure 4 shown, the embodiments of the present application further provide a terminal device 400, including a processor 401, a memory 402, a program or instruction stored on the memory 402 and executable on the processor 401. When the program or instruction is executed by the processor 401, it implements each process of the above-mentioned communication control method embodiments of the dual-mode satellite communication terminal device, and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0085] It should be noted that the terminal device in the embodiments of the present application includes the above-mentioned mobile terminal device and non-mobile terminal device.

[0086] Embodiment 5 The embodiments of the present application further provide a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements each process of the above-mentioned communication control method embodiments of the dual-mode satellite communication terminal device, and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0087] Wherein, the processor is the processor in the terminal device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, etc.

[0088] Embodiment 6 The embodiments of the present application further provide a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instruction to implement each process of the above-mentioned communication control method embodiments of the dual-mode satellite communication terminal device, and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0089] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system-on-chip, system chip, chip system or system-on-chip, etc.

[0090] It should be noted that in this text, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device including a series of elements not only includes those elements but also other elements not explicitly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including such element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0091] Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions for causing a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present application.

[0092] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

[0093] The above is only the preferred embodiment of the present application and the technical principles applied. The present application is not limited to the specific embodiments described herein. Various obvious changes, re-adjustments and substitutions that can be made by those skilled in the art will not depart from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments. Without departing from the concept of the present application, more other equivalent embodiments may be included, and the scope of the present application is determined by the scope of the claims.

Claims

1. A communication control method for a dual-mode satellite communication terminal device, characterized in that: The method comprises: Acquiring connection monitoring information of the terminal device in the first satellite communication mode, wherein the connection monitoring information includes: one or more of satellite duration and number information, satellite call channel allocation feedback information, satellite call connection status information, and satellite call quality information; When the connection monitoring information satisfies a set condition, switching the satellite communication mode of the terminal device from the first satellite communication mode to the second satellite communication mode; Sending a short message to a target satellite in a second satellite communication mode, wherein the short message includes status information and connection monitoring information of the terminal device; The satellite status information of the first satellite communication mode is monitored in real time in the second satellite communication mode, and when the satellite status information meets a preset standard, the satellite communication mode of the terminal device is switched to the first satellite communication mode.

2. The communication control method of the dual-mode satellite communication terminal device according to claim 1, characterized in that: Monitoring satellite status information of the first satellite communication mode in real time in the second satellite communication mode, and switching the satellite communication mode of the terminal device to the first satellite communication mode when the satellite status information meets a preset standard, includes: In the second satellite communication mode, requesting the satellite signal strength and / or satellite channel usage status corresponding to the first satellite communication mode through the monitoring module; When the satellite signal strength meets the first preset standard, switching the satellite communication mode of the terminal device to the first satellite communication mode; and / or, When the satellite channel usage status meets a second preset standard, the satellite communication mode of the terminal device is switched to the first satellite communication mode.

3. The communication control method of the dual-mode satellite communication terminal device according to claim 2, characterized in that: The first preset standard is that the signal strength is greater than a set signal strength threshold for a continuous preset time period; The second preset standard is that the satellite channel usage status is in a state where the channel can be allocated.

4. The communication control method of the dual-mode satellite communication terminal device according to claim 1, characterized in that: After switching the satellite communication mode of the terminal device from the first satellite communication mode to the second satellite communication mode, the method further includes: Identify the mobile information of the terminal device; Using a time series analysis algorithm to analyze the movement information to obtain a movement prediction result; Accordingly, when the satellite status information meets a preset standard, switching the satellite communication mode of the terminal device to the first satellite communication mode includes: When the satellite status information meets a preset standard and when the movement prediction result meets the movement restriction condition of the first satellite communication mode, the satellite communication mode of the terminal device is switched to the first satellite communication mode.

5. The communication control method of the dual-mode satellite communication terminal device according to claim 4, characterized in that: The movement prediction result satisfies the movement restriction condition of the first satellite communication mode, including: If the moving speed is less than the set threshold, and the moving prediction path satisfies the requirement that there is no satellite signal blocking obstacle, it is determined that the moving prediction result satisfies the moving restriction condition of the first satellite communication mode.

6. The communication control method of the dual-mode satellite communication terminal device according to claim 1, characterized in that: After sending the short message to the target satellite in the second satellite communication mode, the method further includes: Performing message identification on the sent short message to determine the satellite communication scenario of the terminal device; If it is a daily communication scenario, the switch identification is performed according to the preset standard; If it is an emergency communication scenario, the switch identification is performed according to the preset emergency communication recovery standard; Accordingly, when the satellite status information meets a preset standard, switching the satellite communication mode of the terminal device to the first satellite communication mode includes: In an emergency communication scenario, when the satellite status information meets a preset emergency communication recovery standard, the satellite communication mode of the terminal device is switched to the first satellite communication mode.

7. The communication control method of the dual-mode satellite communication terminal device according to any one of claims 1 to 6, characterized in that: The first satellite communication mode is a Tiantong satellite call mode; The second satellite communication mode is the Beidou short message communication mode.

8. A communication control device for a dual-mode satellite communication terminal device, characterized in that: The device comprises: A connection monitoring information acquisition module is used to acquire connection monitoring information of the terminal device in the first satellite communication mode, wherein the connection monitoring information includes: one or more of satellite duration and number information, satellite call channel allocation feedback information, satellite call connection status information, and satellite call quality information; A first switching module, configured to switch the satellite communication mode of the terminal device from the first satellite communication mode to the second satellite communication mode when the connection monitoring information meets a set condition; A short message sending module, used for sending a short message to a target satellite in a second satellite communication mode, wherein the short message includes status information and connection monitoring information of the terminal device; The second switching module is used to monitor the satellite status information of the first satellite communication mode in real time under the second satellite communication mode, and switch the satellite communication mode of the terminal device to the first satellite communication mode when the satellite status information meets a preset standard.

9. A terminal device, characterized in that: It comprises a processor, a memory and a program or instruction stored in the memory and executable on the processor, wherein when the program or instruction is executed by the processor, the steps of the communication control method of the dual-mode satellite communication terminal equipment as described in any one of claims 1 to 7 are implemented.

10. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the communication control method of the dual-mode satellite communication terminal device as described in any one of claims 1-7 are implemented.

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