A method, device and micro-nano satellite for space-to-ground communication

Abstract

The method, device and micro-nano-satellite provided by the present invention, the method includes: the micro-nano-satellite broadcasts timing synchronization signaling during the process of passing over the predetermined ground anchor point; the micro-nano-satellite receives the user premise equipment in the predetermined ground anchor point According to the timing synchronization request sent by the timing synchronization signaling; after receiving the timing synchronization request, the micro-nano satellite sends an access permission message to the customer premises equipment, so as to establish a data connection between the micro-nano satellite and the customer premises equipment. This method realizes the data connection between the micro-nano-satellite and the user premises equipment without deploying special equipment to form a backhaul link on the micro-nano-satellite, effectively utilizes the communication resources of the micro-nano-satellite, and solves the following problems in the prior art Problem: Due to the limitation of the carrying capacity of the micro-nano satellite, it is impossible to deploy special equipment to form a backhaul link to realize the dual-connection communication between the micro-nano satellite and the ground anchor point.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a method, device and micro-nano satellite for space-to-earth communication. Background technique [0002] In a land mobile communication system, commonly used connection methods include Coordinated Multiple Points (Coordinated Multiple Points, CoMP) and dual connectivity. The CoMP method needs to implement scheduling at the Media Access Control (MAC) layer, and has relatively high requirements on transmission delay and bandwidth between communication nodes, and is suitable for situations where there are optical fiber links between communication nodes. The dual connection method avoids the delay and synchronization requirements in the scheduling process of the MAC layer. The data is divided and merged at the Packet Data Convergence Protocol (PDCP) layer, and then sent to the user through multiple nodes at the same time. For scenarios with high and reliable latency, ...

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Problems solved by technology

[0005] The present invention provides a method, device and micro-nano-satellite for space-to-earth communication to solve the following problems in the prior art: due to the limitation of the carrying capacity of the micro-nano-satellite, it is impossible to deploy special equipment to form a backhaul link to realize micro-nano-satellite Communicate with ground anchors in dual connectivity

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