Satellite Access Using Movement Information and Measurement Settings
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The discontinuous signal coverage of satellite networks due to the limited number of communication satellites results in challenges for terminals to accurately access and maintain communication with satellites as they move.
Innovation Solution
A method for accessing satellites involves sending movement information, including measurement configuration parameters, to terminals to enable precise alignment and connection, utilizing satellites as base stations, especially in areas with poor ground infrastructure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the number of communication satellites is kept small, then the complexity of the satellite network is reduced, but the signal coverage becomes discontinuous and access reliability deteriorates
Solution Approach 1:
The patent applies dynamics by enabling terminals to dynamically track and follow moving satellites. The terminal determines satellite movement information (position, velocity, attitude) and adjusts its receiving direction accordingly, allowing continuous communication despite satellite motion. This dynamic adaptation resolves the contradiction by maintaining reliable coverage through active tracking rather than static satellite positioning.
Solution Approach 2:
The patent implements feedback mechanisms where satellites send movement information to terminals, and terminals use this feedback to continuously adjust their receiving directions. The terminal measures satellite signals, determines movement parameters, and updates its beamforming or antenna orientation in real-time. This closed-loop feedback system ensures continuous coverage reliability without requiring a large number of satellites.
2Adaptability or versatility
If satellites move rapidly, then the coverage area increases and adaptability improves, but the terminal's ability to accurately track and access the satellite deteriorates
Solution Approach 1:
The patent applies preliminary action by having satellites proactively send their movement information (position, velocity, attitude) to terminals before the terminal needs to access them. This advance information allows terminals to predict satellite positions and pre-adjust their receiving directions, maintaining tracking accuracy even during rapid satellite motion. The measurement configuration parameters are provided in advance to guide precise signal measurement.
Solution Approach 2:
The patent uses parameter changes by providing terminals with satellite movement parameters (position, velocity, attitude) that change over time. The terminal uses these time-varying parameters to continuously update its tracking and receiving direction. This approach allows the system to adapt to rapid satellite motion while maintaining measurement precision through real-time parameter updates.
3Measurement precision
If measurement configuration parameters are provided to terminals, then the access precision to satellites is improved, but the amount of information that must be transmitted increases
Solution Approach 1:
The patent extracts only the essential measurement configuration parameters needed for satellite access from the complete satellite data set. Instead of transmitting all satellite information, only the critical movement parameters (position, velocity, attitude) and measurement configuration data are sent to terminals. This selective extraction provides sufficient precision for access while minimizing information transmission overhead.
Data Source
AI summary
A method for accessing a satellite, applied to satellites, that can include sending movement information of a satellite to a terminal. The movement information being used for the terminal to access the satellite, and the movement information including measurement configuration parameter information.