High-speed internet access system and method suitable for low-orbit satellite

Abstract

The invention discloses a high-speed internet access system and method suitable for a low-orbit satellite, and relates to the field of satellite internet communication. The system comprises a low-orbit satellite group, a ground receiving station, user terminal equipment, a central control center and the like. The low earth orbit satellite group forms a dense satellite network on a near earth orbit so as to realize seamless network coverage at any corner of the earth. The ground receiving station supports simultaneous establishment of connection with a plurality of satellites, and ensures stability and high speed of data transmission. The user terminal equipment enables a user to directly communicate with the nearest low-orbit satellite, and achieves the quick access to the Internet. The central control center adopts 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, and network performance is optimized. The invention 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 rate and quality of global internet access.

Description

Technical Field

[0001] The present invention belongs to the field of satellite communications, and in particular relates to a high-speed Internet access system and method suitable for low-orbit satellites. Background Art

[0002] With the rapid development of the Internet, the global demand for Internet access is growing. However, geographically remote areas, such as mountainous areas and oceans, still face the problem of slow Internet access and poor stability due to the limitations of ground infrastructure. Traditional geostationary orbit (GEO) satellite communications can provide a certain degree of global coverage, but the latency caused by its higher orbital position affects the efficiency of real-time communications and user experience. Summary of the invention

[0003] In order to solve the problems mentioned in the background technology, the present invention proposes a high-speed Internet access system and method suitable for low-orbit satellites. The present invention 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 penetration rate and quality of global Internet access. The implementation of this system will promote information exchange, promote the development of remote education and medical services, and contribute to the growth of the global economy and social progress.

[0004] The technical solution adopted by the present invention is:

[0005] A high-speed Internet access system suitable for low-orbit satellites, comprising: multiple low-orbit satellites, multiple ground receiving stations, multiple types of user terminal equipment and multiple central control centers;

[0006] Low-orbit satellites are used to receive information from ground receiving stations or user terminal devices, forward it directly or after signal processing according to optimization strategies and resource scheduling instructions, transmit business information to ground receiving stations or user terminal devices, and transmit access requests to the central control center;

[0007] The ground receiving station is used to receive information from low-orbit satellites or user terminal equipment, and then process it, including data decoding, data packet reassembly and signal enhancement. According to the optimization strategy and resource scheduling instructions, the processed business information is transmitted to the central control center or user terminal equipment, and the access request is transmitted to the low-orbit satellite;

[0008] The user terminal equipment is used to receive service information from a low-orbit satellite or a 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 users to access Internet services, including web browsing, online applications and data downloads; it is also used to transmit the user's access request and service information to the ground receiving station or the low-orbit satellite;

[0009] The central control center is used to manage and monitor the operating status of the entire system, including the operation of low-orbit satellites, ground receiving stations and user terminal equipment; it is also used to receive data summary information from various ground receiving stations, process and optimize it, including decoding, compression and caching, and analyze network traffic and communication quality based on the received information, and use dynamic resource allocation algorithms to manage resource allocation, optimize transmission paths, perform fault location, identity authentication and authorization, generate network performance reports, optimization strategies and resource scheduling instructions, and then transmit the optimization strategies, resource scheduling instructions and data to ground receiving stations and low-orbit satellites.

[0010] Furthermore, the low-orbit satellites include dozens, hundreds or even thousands of small low-orbit satellites, and the low-orbit satellites are connected by high-speed laser communication links to achieve high-speed data transmission in the satellite network.

[0011] Furthermore, the ground receiving stations are equipped with high-performance antennas and signal processing systems, and support establishing connections with multiple satellites simultaneously.

[0012] Furthermore, the user terminal equipment includes but is not limited to satellite phones, portable access terminals and fixedly installed receiving boxes, which can automatically select a satellite with the best communication conditions and access the Internet through the selected satellite.

[0013] A method for implementing terminal access based on the above system comprises the following steps:

[0014] Step 1: The user terminal establishes a connection with a ground receiving station or a low-orbit satellite, and selects the low-orbit satellite with the strongest signal for direct connection or connection via a ground receiving station;

[0015] Step 2: The user terminal sends an access request, which is forwarded to the central control center via a low-orbit satellite.

[0016] Step 3: The central control center uses a dynamic resource allocation method to process the access request of the user terminal and perform identity authentication and authorization;

[0017] Step 4: The user terminal transmits the data packet to the central control center via a ground receiving station or a low-orbit satellite;

[0018] 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;

[0019] Step 6: The destination user terminal decodes and displays the data.

[0020] Furthermore, the specific process of dynamic resource allocation in step 3 is as follows:

[0021] The central control center uses machine learning algorithms to analyze network traffic, communication quality, and user behavior in real time, and generates status reports in real time; it also intelligently implements priority scheduling and resource allocation based on the status reports, and adjusts the resource allocation of low-orbit satellites and ground receiving stations in real time; among them, resources with high priority are given priority, and resources with low priority are reduced or temporarily not allocated. Resource allocation is calculated based on the requested business volume and link margin. 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 communication time slots meet the requirements, resource allocation is completed, otherwise the user terminal's resource application is rejected and corresponding signaling is generated.

[0022] Compared with the prior art, the method of the present invention has the following advantages:

[0023] Global coverage: Provide high-speed Internet access to almost all areas on Earth, including remote areas and oceans, greatly expanding the scope of service.

[0024] Low-latency communications: The use of low-orbit satellites significantly reduces signal transmission time, providing low-latency network connections that are more suitable for real-time applications.

[0025] High-speed data transmission: Through high-speed laser communication links and optimized ground station technology, it supports high bandwidth requirements and meets the data transmission rate requirements of modern Internet applications.

[0026] Dynamic resource allocation: Use intelligent algorithms to dynamically adjust resources based on network status and user needs, optimize network performance, and improve user experience.

[0027] Easy access: Providing a variety of user terminal devices simplifies the user access process, allowing individuals and enterprises to easily enjoy high-speed Internet services.

[0028] Emergency Communications Support: The ability to quickly provide emergency communications services when terrestrial communications infrastructure is unavailable is critical to disaster relief and emergency response.

[0029] Promoting socio-economic development: Providing high-speed Internet access to remote and developing areas will help the development of education, medical care and economic activities and reduce the digital divide. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the system of the present invention. DETAILED DESCRIPTION

[0031] The present invention is described in further detail below.

[0032] Embodiment 1: A high-speed Internet access system suitable for low-orbit satellites, such as Figure 1As shown in the figure, the system is mainly composed of the following key components: low-orbit satellite clusters, ground receiving stations, user terminal equipment and central control center.

[0033] Low-orbit satellite constellation: This system deploys a group of 500 small low-orbit satellites, which are evenly distributed in a low-Earth orbit about 550 kilometers from the ground. Each satellite is equipped with an efficient communication payload that can support high-speed data transmission and establish high-speed data links with adjacent satellites through advanced laser communication technology to form a high-performance air network.

[0034] Ground receiving stations: There are 50 ground receiving stations set up around the world, which are equipped with highly sensitive receiving antennas and complex signal processing systems. They are not only responsible for exchanging data with the low-orbit satellite cluster, but also for forwarding satellite signals to the local Internet network and uploading ground Internet data to the satellite network.

[0035] User terminal equipment: In order to enable users to access the satellite network, this system provides a variety of user terminal equipment, including portable satellite phones, mobile access terminals and home receiving boxes. These user terminal equipment are simple in design, and users only need to set up them simply to quickly access the nearest low-orbit satellite and enjoy high-speed Internet services.

[0036] 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 tasks such as satellite orbit adjustment, network resource allocation, user authentication and service quality control. By monitoring the status of the satellite network in real time, the central control center can dynamically adjust the network configuration to meet different communication needs and ensure the stable operation of the network.

[0037] The processing of each part is as follows:

[0038] Low-orbit satellites are used to receive information from ground receiving stations or user terminal devices, forward it directly or after signal processing according to optimization strategies and resource scheduling instructions, transmit business information to ground receiving stations or user terminal devices, and transmit access requests to the central control center;

[0039] The ground receiving station is used to receive information from low-orbit satellites or user terminal equipment, and then process it, including data decoding, data packet reassembly and signal enhancement. According to the optimization strategy and resource scheduling instructions, the processed business information is transmitted to the central control center or user terminal equipment, and the access request is transmitted to the low-orbit satellite;

[0040] The user terminal equipment is used to receive service information from a low-orbit satellite or a 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 users to access Internet services, including web browsing, online applications and data downloads; it is also used to transmit the user's access request and service information to the ground receiving station or the low-orbit satellite;

[0041] The central control center is used to manage and monitor the operating status of the entire system, including the operation of low-orbit satellites, ground receiving stations and user terminal equipment; it is also used to receive data summary information from various ground receiving stations, process and optimize it, including decoding, compression and caching, and analyze network traffic and communication quality based on the received information, and use dynamic resource allocation algorithms to manage resource allocation, optimize transmission paths, perform fault location, identity authentication and authorization, generate network performance reports, optimization strategies and resource scheduling instructions, and then transmit the optimization strategies, resource scheduling instructions and data to ground receiving stations and low-orbit satellites.

[0042] Assume that a school in a remote rural area needs to access the Internet to obtain educational resources. By installing the home receiving box provided by the system of the present invention, the school can achieve high-speed Internet access, and teachers and students can browse web pages, download teaching videos and study online courses, which greatly enriches their learning resources and methods.

[0043] 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 stay in touch with the outside world, share research results in time, or ask for help in an emergency.

[0044] In summary, the low-orbit satellite global high-speed Internet access system of the present invention provides high-speed and stable Internet access services to global users through advanced networking technology, efficient ground station and user terminal design, and intelligent resource allocation algorithm, which is of great significance for improving the communication quality in remote areas.

[0045] Embodiment 2, a method for implementing terminal access based on the above system, comprises the following steps:

[0046] Step 1: The user terminal establishes a connection with a ground receiving station or a low-orbit satellite, and selects the low-orbit satellite with the strongest signal for direct connection or connection via a ground receiving station.

[0047] Step 2: The user terminal sends an access request, which is forwarded to the central control center via a low-orbit satellite.

[0048] Step 3: The central control center uses a dynamic resource allocation method to process the access request of the user terminal and perform identity authentication and authorization. The specific process of dynamic resource allocation is as follows:

[0049] The central control center uses machine learning algorithms to analyze network traffic, communication quality, and user behavior in real time, and generates status reports in real time; and intelligently implements priority scheduling and resource allocation based on the status reports, and adjusts the resource allocation of low-orbit satellites and ground receiving stations in real time to respond to changes in demand and ensure the performance of the access system. Among them, resources with high priority are guaranteed to be allocated first, and resources with low priority are reduced or temporarily not allocated. Resource allocation is calculated based on the requested business volume and link margin. 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 communication time slots meet the requirements, resource allocation is completed, otherwise the resource application of the user terminal is rejected and the corresponding signaling is formed.

[0050] Step 4: The user terminal transmits the data packet to the central control center via the ground receiving station or low-orbit satellite.

[0051] 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;

[0052] Step 6: The destination user terminal decodes and displays the data.

[0053] The above is a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any equivalent replacement or change made by a person skilled in the art based on the technical solution and inventive concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-speed Internet access system suitable for low-orbit satellites, It is characterized in that include: Multiple low-orbit satellites, multiple ground receiving stations, various types of user terminal equipment and multiple central control centers; Low-orbit satellites are used to receive information from ground receiving stations or user terminal devices, forward it directly or after signal processing according to optimization strategies and resource scheduling instructions, transmit business information to ground receiving stations or user terminal devices, and transmit access requests to the central control center; The ground receiving station is used to receive information from low-orbit satellites or user terminal equipment, and then process it, including data decoding, data packet reassembly and signal enhancement. According to the optimization strategy and resource scheduling instructions, the processed business information is transmitted to the central control center or user terminal equipment, and the access request is transmitted to the low-orbit satellite; User terminal equipment is used to receive business information from low-orbit satellites or ground receiving stations, decode the received business information, generate data applications, Internet service access and local content required by users, and provide users with a platform for accessing Internet services, including web browsing, online applications and data downloads; It is also used to transmit the user's access request and service information to the ground receiving station or low-orbit satellite; The central control center is used to manage and monitor the operating status of the entire system, including the operation of low-orbit satellites, ground receiving stations and user terminal equipment; it is also used to receive data summary information from various ground receiving stations, process and optimize it, including decoding, compression and caching, and analyze network traffic and communication quality based on the received information, and use dynamic resource allocation algorithms to manage resource allocation, optimize transmission paths, perform fault location, identity authentication and authorization, generate network performance reports, optimization strategies and resource scheduling instructions, and then transmit the optimization strategies, resource scheduling instructions and data to ground receiving stations and low-orbit satellites.

2. A high-speed Internet access system suitable for low-orbit satellites according to claim 1, It is characterized in that The low-orbit satellites include dozens, hundreds or even thousands of small low-orbit satellites, which are connected by high-speed laser communication links to achieve high-speed data transmission in the satellite network.

3. A high-speed Internet access system suitable for low-orbit satellites according to claim 1, It is characterized in that The ground receiving stations are all equipped with high-performance antennas and signal processing systems, and support simultaneous connections with multiple satellites.

4. A high-speed Internet access system suitable for low-orbit satellites according to claim 1, It is characterized in that The user terminal equipment includes but is not limited to satellite phones, portable access terminals and fixedly installed receiving boxes, and can automatically select a satellite with the best communication conditions and access the Internet through the selected satellite.

5. A method for implementing terminal access based on the system described in any one of claims 1 to 4, It is characterized in that The following steps are involved: Step 1: The user terminal establishes a connection with a ground receiving station or a low-orbit satellite, and selects the low-orbit satellite with the strongest signal for direct connection or connection via a ground receiving station; Step 2: The user terminal sends an access request, which is forwarded to the central control center via a low-orbit satellite. Step 3: The central control center uses a dynamic resource allocation method to process the access request of the user terminal and perform identity authentication and authorization; Step 4: The user terminal transmits the data packet to the central control center via 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 best 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 terminal access method according to claim 5, It is characterized in that The specific process of dynamic resource allocation in step 3 is: The central control center uses machine learning algorithms to analyze network traffic, communication quality, and user behavior in real time, and generates status reports in real time; it also intelligently implements priority scheduling and resource allocation based on the status reports, and adjusts the resource allocation of low-orbit satellites and ground receiving stations in real time; among them, resources with high priority are given priority, and resources with low priority are reduced or temporarily not allocated. Resource allocation is calculated based on the requested business volume and link margin. 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 communication time slots meet the requirements, resource allocation is completed, otherwise the user terminal's resource application is rejected and corresponding signaling is generated.

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