High-speed internet access system suitable for low earth orbit satellites, and method

Abstract

The present application relates to the field of satellite Internet communications, and discloses a high-speed Internet access system suitable for low Earth orbit satellites, and a method. The system of the present application comprises a low Earth orbit satellite constellation, ground stations, user terminal devices, central control centers, etc. The low Earth orbit satellite constellation forms a dense satellite network in low Earth orbit to provide seamless network coverage anywhere on Earth. The ground stations support establishing connections with a plurality of satellites at the same time, thereby ensuring the stability and high speed of data transmission. The user terminal devices enable a user to directly communicate with a nearest low Earth orbit satellite, thereby achieving fast access to the Internet. The central control centers use a dynamic resource allocation algorithm to dynamically adjust spectrum resources and channel allocation according to real-time communication requirements and the state of the satellite network, thereby optimizing network performance. The present application not only provides unprecedented network access solutions for special environments such as remote areas and offshore platforms, but also has great significance for improving the popularity and quality of global Internet access.

Description

A high-speed internet access system and method suitable for low-orbit satellites

[0001] Cross-reference to Related Applications

[0002] This application claims priority to the Chinese patent application No. 2024112743564, filed on September 12, 2024, entitled "A high-speed internet access system and method suitable for low-orbit satellites", which is incorporated by reference in its entirety. TECHNICAL FIELD

[0003] The present application belongs to the field of satellite communication, and in particular relates to a high-speed internet access system and method suitable for low-orbit satellites. BACKGROUND

[0004] With the rapid development of the Internet, the demand for global internet access is growing. However, remote areas such as mountainous areas, oceans, etc. still face the problems of slow internet access speed and poor stability due to the limitations of ground infrastructure. Traditional geostationary orbit (GEO) satellite communication can provide a certain degree of global coverage, but the delay problem caused by its high orbit position affects the efficiency of real-time communication and user experience. SUMMARY

[0005] In order to solve the problems mentioned in the background, the present application proposes a high-speed internet access system and method suitable for low-orbit satellites. The present application not only provides an unprecedented network access solution for special environments such as remote areas and offshore platforms, but also has great significance for improving the popularity and quality of global internet access. The implementation of this system will promote information exchange and the development of distance education and medical services, contributing to the growth of the global economy and social progress.

[0006] The technical solution adopted by the present application is:

[0007] A high-speed internet access system suitable for low-orbit satellites, comprising: a plurality of low-orbit satellites, a plurality of ground receiving stations, a plurality of types of user terminal devices, and a plurality of central control centers;

[0008] The low-orbit satellites are used to receive information from the ground receiving stations or user terminal devices, and transmit the business information to the ground receiving stations or user terminal devices according to the optimized strategy and resource scheduling instructions, or after signal processing, and transmit the access request to the central control center.

[0009] The ground receiving station is used to receive information from the low-orbit satellite or the user terminal device, and then process, including data decoding, data packet reorganization and signal enhancement, transmit the processed service information to the central control center or the user terminal device according to the optimization strategy and resource scheduling instruction, and transmit the access request to the low-orbit satellite;

[0010] The user terminal device is used to receive service information from the low-orbit satellite or the ground receiving station, decode the received service information, generate data application, internet service access and local content required by the user, and provide a platform for the user to access the internet service, including webpage browsing, online application and data download; and is also used to transmit the access request and service information of the user to the ground receiving station or the low-orbit satellite.

[0011] The central control center is used to manage and monitor the operation state of the entire system, including the running conditions of the low-orbit satellite, the ground receiving station and the user terminal device; is also used to receive data summary information from each ground receiving station, process and optimize, including decoding, compression and caching, analyze network traffic and communication quality according to the received information, and manage resource allocation, optimize transmission path, perform fault positioning, identity verification and authorization by using a dynamic resource allocation algorithm, generate a network performance report, an optimization strategy and a resource scheduling instruction, and then transmit the optimization strategy, the resource scheduling instruction and the data to the ground receiving station and the low-orbit satellite.

[0012] Further, the low-orbit satellite includes tens, hundreds or even thousands of small low-orbit satellites, and the low-orbit satellites are connected through high-speed laser communication links to realize high-speed transmission of data in the satellite network.

[0013] Further, the ground receiving station is equipped with a high-performance antenna and a signal processing system; and supports simultaneous connection with multiple satellites.

[0014] Further, the user terminal device includes, but is not limited to, a satellite phone, a portable access terminal and a fixedly installed receiving box, and can automatically select a satellite with the best communication condition and access the internet through the selected satellite.

[0015] A method for realizing terminal access based on the above system includes the following steps:

[0016] Step 1, the user terminal establishes a connection with the ground receiving station or the low-orbit satellite, and selects a low-orbit satellite with the strongest signal to directly connect or connect through the ground receiving station;

[0017] Step 2, the user terminal sends an access request, and the access request is forwarded to the central control center through the low-orbit satellite;

[0018] Step 3, the central control center processes the access request of the user terminal by using a dynamic resource allocation method, and performs identity verification and authorization.

[0019] Step 4: The user terminal transmits the data packet to the central control center via the ground receiving station or low-orbit satellite.

[0020] Step 5: The central control center processes and optimizes the data, including decoding, compression, and caching, and analyzes the data traffic to determine the optimal transmission path. The data is then transmitted to the destination user terminal via the ground receiving station or low-orbit satellite.

[0021] Step 6: The destination user terminal decodes and displays the data.

[0022] Further, the specific process of dynamic resource allocation in step 3 is as follows:

[0023] The central control center uses machine learning algorithms to analyze network traffic, communication quality, and user behavior in real-time, generating a status report. Based on the status report, the central control center intelligently implements priority scheduling and resource allocation, and adjusts the resource allocation of low-orbit satellites and ground receiving stations in real-time. High-priority users are given priority in resource allocation, while low-priority users may be allocated less resources or temporarily not allocated resources. The resource allocation is calculated based on the amount of business and link surplus, and includes beam, uplink and downlink channels, control channels, frequency, carrier rate, and communication time slots. When the uplink and downlink channels and communication time slots meet the demand, the resource allocation is complete, otherwise the user terminal's resource application is rejected and the corresponding signaling is formed.

[0024] Compared with the prior art, the method has the following advantages:

[0025] Global coverage: Achieve high-speed internet access to almost all areas on Earth, including remote areas and oceans, greatly expanding the service range.

[0026] Low latency communication: The use of low-orbit satellites greatly reduces signal transmission time, providing low-latency network connections suitable for real-time applications.

[0027] High-speed data transmission: Through high-speed laser communication links and optimized ground station technology, high-bandwidth demands are supported, meeting the data transmission rate requirements of modern internet applications.

[0028] Dynamic resource allocation: Intelligent algorithms are used to dynamically adjust resources based on network status and user demand, optimizing network performance and improving user experience.

[0029] Easy access: Provides a variety of user terminal devices, simplifying the user access process, making it easy for individuals and businesses to enjoy high-speed internet services.

[0030] Emergency communication support: In the event of unavailable ground communication infrastructure, emergency communication services can be quickly provided, which is crucial for disaster relief and emergency response.

[0031] Promote socio-economic development: Provide high-speed internet access to remote and developing areas, help education, health and economic activities, and reduce the digital divide. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a schematic diagram of the system of the present application. DETAILED DESCRIPTION

[0033] The present application will be further described in detail below.

[0034] Example one, a high-speed internet access system suitable for low-orbit satellites, as shown in Figure 1, the system is mainly composed of the following several key components: low-orbit satellite group, ground receiving station, user terminal equipment and central control center.

[0035] Low-orbit satellite group: The system deploys a group of 500 small low-orbit satellites, which are evenly distributed in the near-earth orbit about 550 kilometers from the ground. Each satellite is equipped with high-efficiency communication payload, which can support high-speed data transmission, and through advanced laser communication technology, it establishes high-speed data link with adjacent satellites to form a high-performance air network.

[0036] Ground receiving station: 50 ground receiving stations are set up worldwide, equipped with high-sensitivity receiving antennas and complex signal processing systems. They are responsible not only for data exchange with the low-orbit satellite group, but also for forwarding satellite signals to the local internet network and uploading ground internet data to the satellite network.

[0037] User terminal equipment: In order to enable users to access the satellite network, the system provides various types of user terminal equipment, including portable satellite phones, mobile access terminals and home receiving boxes. These user terminal equipment are designed simply, users only need to set up simply to quickly access the nearest low-orbit satellite and enjoy high-speed internet service.

[0038] Central control center: The operation of the system is monitored and managed by a series of central control centers distributed around the world. These centers are responsible for satellite orbit adjustment, network resource allocation, user authentication and service quality control. Through real-time monitoring of the status of the satellite network, the central control center can dynamically adjust the network configuration to meet different communication needs and ensure the stable operation of the network.

[0039] The process of each part is as follows:

[0040] Low-orbit satellite for receiving information from ground receiving station or user terminal equipment, according to the optimization strategy and resource scheduling instruction for direct forwarding or after signal processing again, will transmit the business information to the ground receiving station or user terminal equipment, will transmit the access request to the central control center;

[0041] The ground receiving station is used to receive information from the low-orbit satellite or the user terminal device, and then process it, including data decoding, data packet reorganization and signal enhancement, transmit the processed service information to the central control center or the user terminal device according to the optimization strategy and resource scheduling instruction, and transmit the access request to the low-orbit satellite;

[0042] The user terminal device is used to receive service information from the low-orbit satellite or the ground receiving station, decode the received service information, generate data applications, internet service access and local content required by the user, and provide a platform for the user to access internet services, including web browsing, online applications and data download; and is also used to transmit the access request and service information of the user to the ground receiving station or the low-orbit satellite;

[0043] The central control center is used to manage and monitor the operation state of the entire system, including the running conditions of the low-orbit satellite, the ground receiving station and the user terminal device; and is also used to receive data summary information from each ground receiving station, process and optimize it, including decoding, compression and caching, analyze network traffic and communication quality according to the received information, and manage resource allocation, optimize transmission path, perform fault positioning, identity verification and authorization by using a dynamic resource allocation algorithm, generate a network performance report, an optimization strategy and a resource scheduling instruction, and then transmit the optimization strategy, the resource scheduling instruction and data to the ground receiving station and the low-orbit satellite.

[0044] Suppose that in a remote rural area, a school needs to access the internet to obtain educational resources. By installing the home receiving box provided by the system of the application, the school can realize high-speed internet access, and teachers and students can browse web pages, download teaching videos and conduct online course learning, greatly enriching their learning resources and methods.

[0045] In addition, for explorers or researchers who often work in remote areas, portable satellite phones and mobile access terminals will become their valuable communication tools. No matter where they are, they can maintain contact with the outside world and share research results or seek help in emergency situations in a timely manner.

[0046] In summary, the low-orbit satellite global high-speed internet access system of the application provides high-speed and stable internet access services for global users through advanced networking technology, efficient ground stations and user terminal design, and intelligent resource allocation algorithms, which has great significance for improving the communication quality in remote areas.

[0047] Embodiment two, a method for realizing terminal access based on the above system, comprising the following steps:

[0048] Step 1, the user terminal establishes a connection with the ground receiving station or low-orbit satellite, and selects the low-orbit satellite with the strongest signal for direct connection or connection through the ground receiving station.

[0049] Step 2, the user terminal sends an access request, which is forwarded to the central control center through the low-orbit satellite.

[0050] Step 3, the central control center uses a dynamic resource allocation method to process the access request of the user terminal, performs identity verification and authorization; the specific process of dynamic resource allocation is as follows:

[0051] The central control center uses a machine learning algorithm to analyze network traffic, communication quality and user behavior in real time, and generates a status report in real time; and intelligently implements priority scheduling and resource allocation according to the status report, and adjusts the resource allocation of the low-orbit satellite and the ground receiving station in real time to cope with demand changes and ensure the performance of the access system. Among them, the resources are allocated to the high-priority users first, and the low-priority users are reduced or temporarily not allocated. The resource allocation is calculated according to the amount of business and the link margin, and the allocated resources include beams, uplink and downlink channels, control channels, frequencies, carrier rates and communication time slots; when the uplink and downlink channels and the communication time slots meet the demand, the resource allocation is completed, otherwise the resource application of the user terminal is rejected, and the corresponding signaling is formed.

[0052] Step 4, the user terminal transmits data packets to the central control center through the ground receiving station or low-orbit satellite.

[0053] Step 5, the central control center processes and optimizes the data, including decoding, compression and caching, and analyzes the data traffic to determine the best transmission path, and transmits the data to the destination user terminal through the ground receiving station or low-orbit satellite.

[0054] Step 6, the destination user terminal decodes and displays the data.

[0055] The above is a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any equivalent replacement or change made by any person skilled in the art according to the technical solution and inventive concept of the present application should be covered within the protection scope of the present application.

Claims

1. A high-speed Internet access system suitable for low earth orbit satellites, comprising: A plurality of low-orbit satellites, a plurality of ground receiving stations, a plurality of types of user terminal devices and a plurality of central control centers, The low-orbit satellites are configured to receive information from the ground receiving stations or the user terminal devices, directly forward or forward after signal processing according to an optimization strategy and a resource scheduling instruction, transmit service information to the ground receiving stations or the user terminal devices, and transmit an access request to the central control center. The ground receiving stations are configured to receive information from the low-orbit satellites or the user terminal devices, then perform processing including data decoding, data packet reorganization and signal enhancement, transmit processed service information to the central control center or the user terminal devices according to the optimization strategy and the resource scheduling instruction, and transmit the access request to the low-orbit satellites. The user terminal devices are configured to receive service information from the low-orbit satellites or the ground receiving stations, decode the received service information, generate data applications, internet service access and local content required by users, and provide a platform for the users to access internet services including webpage browsing, online applications and data downloading; the user terminal devices are also configured to transmit an access request and service information of the users to the ground receiving stations or the low-orbit satellites. The central control center is configured to manage and monitor an operation state of the entire system including running conditions of the low-orbit satellites, the ground receiving stations and the user terminal devices; the central control center is also configured to receive data summary information from the ground receiving stations, perform processing and optimization including decoding, compression and buffering, analyze network traffic and communication quality according to the received information, and manage resource allocation, optimize a transmission path, perform fault positioning, identity verification and authorization by using a dynamic resource allocation algorithm, generate a network performance report, an optimization strategy and a resource scheduling instruction, and then transmit the optimization strategy, the resource scheduling instruction and data to the ground receiving stations and the low-orbit satellites.

2. The high-speed Internet access system for low earth orbit satellites of claim 1, wherein, The low-orbit satellites include tens, hundreds or thousands of small low-orbit satellites, and the low-orbit satellites are connected by high-speed laser communication links to realize high-speed transmission of data in a satellite network.

3. The high-speed Internet access system for low earth orbit satellites of claim 1 wherein, The ground receiving stations are each equipped with a high-performance antenna and a signal processing system, and support simultaneous connection with multiple satellites.

4. The high-speed Internet access system for low earth orbit satellites of claim 1 wherein, The user terminal devices include, but are not limited to, satellite phones, portable access terminals and fixedly installed receiving boxes, and can automatically select a satellite with the best communication condition and access the internet through the selected satellite.

5. A method for terminal access based on the system according to any one of claims 1-4, comprising the following steps: Step 1: a user terminal establishes a connection with a ground receiving station or a low-orbit satellite, and selects a low-orbit satellite with the strongest signal to directly connect or connect through the ground receiving station; Step 2: the user terminal sends an access request, and the access request is forwarded to a central control center through a low-orbit satellite; Step 3: the central control center processes the access request of the user terminal by using a dynamic resource allocation method, and performs identity verification and authorization; Step 4: the user terminal transmits data packets to the central control center through a ground receiving station or a low-orbit satellite. Step 5, the central control center processes and optimizes the data, including decoding, compression and caching, and analyzes the data traffic to determine the optimal transmission path, and transmits the data to the destination user terminal through the ground receiving station or low-orbit satellite; Step 6, the destination user terminal decodes and displays the data.

6. The method of terminal access according to claim 5, wherein, The specific process of dynamic resource allocation in step 3 is as follows: The central control center uses machine learning algorithms to analyze network traffic, communication quality and user behavior in real time, generates a status report in real time, and intelligently implements priority scheduling and resource allocation based on the status report, and adjusts the resource allocation of low-orbit satellites and ground receiving stations in real time; wherein, the high-priority resources are allocated first, the low-priority resources are reduced or temporarily not allocated, the resource allocation is calculated according to the amount of business and the link margin, and the allocated resources include beams, uplink and downlink channels, control channels, frequencies, carrier rates and communication time slots; when the uplink and downlink channels and the communication time slots meet the demand, the resource allocation is completed, otherwise the resource application of the user terminal is rejected, and the corresponding signaling is formed.

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