Master-Slave Radio UE Location via Wireless Signal Monitoring
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Solution Overview
Problem
Existing location determination methods for user equipment (UE) in vehicles, such as those using signal strengths or Angle of Arrival (AoA) techniques, require complex antenna array installations and physical connections, increasing manufacturing costs and complexity.
Innovation Solution
A method involving a master radio establishing a dedicated wireless connection with a UE and instructing slave radios to monitor and measure signals within a defined time window, allowing for location determination based on collected measurements without the need for physical connections between the master radio and slave radios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If physical connections (coaxial cables) are used to couple master radio to antenna arrays, then measurement precision for location determination is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent replaces the mechanical/physical connection system (coaxial cables coupling master radio to antenna arrays) with a wireless communication system. Slave radios mounted on antenna arrays communicate wirelessly with the master radio, eliminating the need for physical cable installations while maintaining the ability to collect signal measurements for location determination.
2Measurement precision
If physical connections (coaxial cables) are used to couple master radio to antenna arrays, then measurement precision for location determination is improved, but manufacturing cost increases
Solution Approach 1:
The patent eliminates expensive physical cable installations by substituting wireless communication between slave radios and the master radio. This removes materials cost (coaxial cables) and installation labor cost, significantly reducing manufacturing and deployment expenses while preserving measurement capabilities through wireless signal transmission.
3Device complexity
If slave radios are used to monitor wireless connections, then device complexity is reduced, but measurement precision may deteriorate
Solution Approach 1:
The patent divides the measurement function across multiple independent slave radios distributed at different antenna array locations throughout the vehicle. Each slave radio independently monitors wireless connections and provides local measurements, which are then aggregated by the master radio to achieve comprehensive and accurate location determination without requiring complex centralized hardware.
Data Source
AI summary
Embodiments relate to a deployment of a master radio in conjunction with one or more slave radios. The master radio coordinates with a UE, or transmitter, to transmit a particular known set of wireless signals in a defined time window over a dedicated wireless connection between the UE and the master radio. The master radio separately coordinates with the one or more slave radios to monitor for and measure the dedicated wireless connection during the defined time window (e.g., to obtain AoA measurements, signal strength measurements, etc.). The measurements can be reported to the master radio or a separate measurement processing unit to facilitate a location determination of the UE.