Pilot Signal Power Optimization for Satellite Network Interoperability
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Solution Overview
Problem
Existing satellite communication networks and other open wireless channels lack a unified, standardized, and simplified method for pilot synchronization across different network forms and technical systems, hindering interconnection and interworking among various wireless networks.
Innovation Solution
A method where a terminal station is selected as a reference to send a pilot signal with a power proportion of 0.1‰-5% on open wireless channels, spread with a spread spectrum code and superimposed on communication signals, providing synchronization and timing information without affecting data transmission, and enabling reliable reception across multiple terminal stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If internal pilot signals are used in star network, then synchronization service is provided, but other satellite networks cannot obtain and apply the pilot and indication information
Solution Approach 1:
The patent segments the pilot signal into a standardized public portion that can be universally accessed by different satellite networks, separating it from network-specific private portions. This allows multiple networks to share the same satellite channel resource while maintaining their own operational independence, resolving the contradiction between interoperability and system coupling.
Solution Approach 2:
The patent creates a universal pilot signal structure that serves multiple satellite networks simultaneously. The standardized pilot signal provides synchronization and indication information that can be applied by any satellite network accessing the open wireless channel, making the system multi-functional and network-agnostic while reducing technical system coupling.
2Reliability
If pilot signal power is increased to ensure reliable reception, then synchronization quality improves, but data transmission is affected
Solution Approach 1:
The patent optimizes the pilot signal power parameter to a specific range (0.1‰-5% of total channel power) that ensures reliable synchronization reception while minimizing interference with data transmission. This parameter optimization resolves the contradiction by finding the optimal balance point where synchronization reliability is sufficient without causing harmful interference to concurrent data transmissions on the same channel.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach ensures high-quality synchronization and timing information, reduces communication complexity, and enhances transmission efficiency and reliability, facilitating the unification and standardization of pilot synchronization services across different networks.
Implementation Method 1
When the pilot signal is transmitted, it is spread with a spread spectrum code and superimposed on a communication signal in the pilot frequency bands in a low power spectrum signal mode similar with noise
Data Source
AI summary
A method for piloting from bypass in a network with open wireless channels is disclosed. The method includes: 1) selecting a terminal station as a reference in open wireless channels, and sending a pilot signal, in which all or some frequency bands of open wireless channels occupied by the pilot signal are pilot frequency bands, and the proportion of power of the pilot signal to the total power of the pilot frequency bands is 0.1‰-5%; 2) spreading the pilot signal with a spread spectrum code when it is transmitted, and then superimposing on a communication signal in the pilot frequency bands in a low power spectrum signal mode similar with noise; and 3) providing pilot, carrier wave and clock synchronization, standard timing and indication information for network construction and mutual communication of multiple types of terminal stations in channels by the pilot signal.