Multi-GNSS Signal Processing for Position Accuracy
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Solution Overview
Problem
Current communication systems for determining the position of mobile stations in wireless networks rely on a single satellite system, which limits efficiency and accuracy, as they do not effectively utilize signals from multiple satellite systems like GPS, GLONASS, and Galileo.
Innovation Solution
A method and system that integrate data processing and signal protocols to receive and identify signals from multiple global navigation satellite systems (GNSS), such as GPS and Galileo, to determine position location information, modifying existing protocols like RRLP to support dual or multi-GNSS operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single satellite system is used for position determination, then the system complexity is low, but the position accuracy and reliability are limited
Solution Approach 1:
The patent combines multiple satellite systems (GPS, GLONASS, Galileo) into a unified position determination system. The processor is configured to receive and process signals from satellites belonging to different satellite systems, merging their capabilities to achieve higher position accuracy and reliability while maintaining a single integrated system architecture.
Solution Approach 2:
The position determination system is designed with universal capability to handle signals from multiple satellite systems. The processor can flexibly process signals from any satellite system, making the system multi-functional and adaptable to different satellite constellations without requiring separate dedicated systems for each satellite type.
2Reliability
If multiple satellite systems are integrated, then position determination accuracy and redundancy improve, but protocol complexity increases
Solution Approach 1:
The signaling protocol is designed with universal structures that can accommodate multiple satellite systems. Information elements are defined generically to represent satellite signals without being specific to any particular satellite system, allowing the same protocol framework to handle GPS, GLONASS, Galileo, and future systems uniformly, thus improving reliability while controlling protocol complexity.
3Loss of time
If assistance data from multiple satellite systems is processed, then Time to First Fix is reduced, but data processing complexity increases
Solution Approach 1:
The system merges assistance data from multiple satellite systems into a unified data structure. The processor combines ephemeris, almanac, and other assistance information from different satellite systems, allowing the mobile station to quickly acquire signals from any available satellite regardless of which system it belongs to, thereby reducing Time to First Fix while managing processing complexity through integrated data handling.
Data Source
AI summary
Each of a first and a second navigation satellite system (NSS) are adapted to operate according to a first and a second specification, respectively, and each includes a first and a second plurality of satellite vehicles (SVs), respectively. Each of the first and the second plurality of SVs are adapted to be identified by a first and a second plurality of unique corresponding identifications (IDs), respectively. A processor is adapted to receive and identify a first plurality of corresponding signals transmitted from the first plurality of SVs in response to the first plurality of unique corresponding IDs. The processor is adapted to receive and identify a second plurality of corresponding signals transmitted from the second plurality of SVs in response to the second plurality of unique corresponding IDs. The processor is adapted to determine position location information in response to receiving and identifying the first plurality of corresponding signals and the second plurality of corresponding signals.