Orientation Determination Using Carrier-Phase Ranges
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Solution Overview
Problem
Current 5G wireless communication systems face challenges in accurately determining the orientation of user equipment (UE) for enhanced reality (XR) and mission-critical applications, particularly in environments requiring precise positioning and orientation tracking.
Innovation Solution
The system employs multiple antenna signals to determine ranges between network and user apparatuses, using carrier-phase measurements and estimation techniques to calculate the orientation of user equipment, either centrally at the network apparatus or locally at the user apparatus, enabling accurate and efficient orientation determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple antenna signals are used to determine ranges and orientation, then orientation accuracy is improved, but device complexity increases
Solution Approach 1:
The system segments the orientation determination process into two parts: range determination using carrier-phase measurements from multiple antennas, and orientation calculation from the obtained ranges. This segmentation allows each part to be optimized independently, improving overall accuracy while managing complexity.
Solution Approach 2:
The patent introduces range determination as an intermediary step between signal reception and orientation calculation. By first determining ranges from multiple antennas and then calculating orientation from these ranges, the system simplifies the overall process while maintaining high accuracy through the use of carrier-phase measurements in the intermediate range determination step.
2Reliability
If orientation determination is performed centrally at the network apparatus, then reliability is improved, but latency increases
Solution Approach 1:
The system implements dynamic orientation determination that can adapt between centralized and local processing modes. The network apparatus can determine orientation centrally for high reliability scenarios, while also enabling user equipment to perform local determination for low-latency requirements, allowing the system to dynamically select the optimal approach based on service requirements.
3Device complexity
If dedicated reference points are eliminated in favor of using existing antennas, then device complexity is reduced, but measurement precision may worsen
Solution Approach 1:
The patent makes the antenna system universal by enabling existing communication antennas to serve dual purposes: both signal transmission/reception and orientation determination. By using the same antenna array for both communication and positioning functions, the system eliminates the need for dedicated reference points or separate positioning hardware, reducing overall system complexity while maintaining measurement precision through carrier-phase measurement techniques.
Data Source
AI summary
The present subject matter relates to an apparatus for a wireless communication system. The apparatus comprises means being configured for: receiving from antennas of another apparatus, herein referred to as user apparatus, antenna signals respectively; determining ranges between the apparatus and the antennas of the user apparatus using the multiple antenna signals; determining an orientation of the user apparatus using the determined ranges.