Base Station Positioning Signal Encryption
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Solution Overview
Problem
Existing positioning systems face challenges in securely transmitting highly confidential position information of reference stations while managing increased data communication traffic between base stations and communication terminals, which can lead to traffic shortages.
Innovation Solution
A positioning system where the base station receives carrier phase information from a receiver, encrypts the position information, and transmits it as a carrier positioning signal to the communication terminal, ensuring secure protection of the position information and efficient data transmission by compressing and allocating the signal in available communication channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the base station transmits position information of the receiver to the communication terminal for positioning, then positioning accuracy is improved, but security of position information deteriorates
Solution Approach 1:
The patent introduces encryption technology as an intermediary mechanism between the position information transmission and the communication terminal. The base station encrypts the position information before transmission, and the communication terminal decrypts it using a predetermined key. This intermediary encryption layer protects the position information from being accessed by unauthorized parties while still allowing the intended recipient to use it for positioning calculations.
2Adaptability or versatility
If the base station transmits carrier phase information and position information to multiple communication terminals, then positioning service coverage is improved, but data communication traffic increases
Solution Approach 1:
The patent implements periodic transmission of carrier positioning signals at predetermined intervals rather than continuous transmission. The base station transmits the encrypted position information and carrier phase information at regular time intervals, allowing communication terminals to perform positioning updates periodically. This periodic action reduces the overall data traffic compared to continuous transmission while maintaining positioning service availability across the network.
Data Source
AI summary
A positioning system includes a receiver that receives a positioning signal from a positioning satellite and generates carrier phase information, a base station that receives the carrier phase information from the receiver, and a communication terminal that performs wireless communication with the base station. The base station transmits information including the carrier phase information and the position information of the receiver as a carrier positioning signal to the communication terminal and the communication terminal performs carrier positioning using the carrier positioning signal transmitted by the base station. Here, the base station encrypts the position information of the receiver, in the carrier positioning signal to be transmitted.