NR Positioning Signaling Across Disjoint Bandwidth Segments
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Solution Overview
Problem
Existing wireless communication systems face challenges in achieving accurate wireless positioning due to the limitations of current bandwidth configurations, particularly in the context of the 5G New Radio (NR) standard, which requires enhanced spectral efficiency and reduced latency.
Innovation Solution
The implementation of disjoint bandwidth segments for wireless positioning, where user equipment (UE) and base stations can transmit and receive positioning reference signals across multiple disjoint frequency bands, and determine positioning measurements based on phase coherence between these segments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional single bandwidth configuration is used for positioning, then device complexity is reduced, but positioning accuracy deteriorates due to limited bandwidth
Solution Approach 1:
The patent divides the available spectrum into multiple disjoint bandwidth segments, each carrying positioning reference signals. Instead of using a single continuous bandwidth, the system segments the bandwidth into separate parts (e.g., first bandwidth segment, second bandwidth segment) that can be independently configured and measured. This segmentation allows the system to achieve higher effective bandwidth for positioning accuracy while managing device complexity through modular configuration.
2Measurement precision
If multiple disjoint bandwidth segments are used for positioning reference signals, then positioning accuracy is improved through bandwidth aggregation, but signaling complexity increases
Solution Approach 1:
The patent creates a universal positioning configuration framework that can handle multiple disjoint bandwidth segments through a single standardized configuration message. The positioning configuration indicates multiple bandwidth segments with unified parameters (frequency start, bandwidth, reference signal resources), allowing the system to manage complex multi-segment positioning through a universal signaling mechanism rather than separate configurations for each segment.
3Productivity
If bandwidth aggregation across disjoint segments is implemented, then spectral efficiency is enhanced, but measurement complexity increases
Solution Approach 1:
The patent enables the user equipment to autonomously perform measurements across multiple disjoint bandwidth segments using self-service mechanisms. The UE independently configures and executes measurements on each bandwidth segment's positioning reference signals, then aggregates the results. This self-service approach allows bandwidth aggregation for enhanced spectral efficiency while distributing measurement complexity across multiple independent measurement processes rather than requiring complex centralized processing.
Data Source
AI summary
Disclosed are systems, methods, and non-transitory media for providing signaling consideration for wireless positioning with disjoint bandwidth segments. For instance, one or more indications of a preferred bandwidth configuration can be transmitted by a user equipment. Based on the one or more indications, the user equipment can receive a positioning configuration that indicates disjoint bandwidth segments containing a positioning reference signal based on the preferred bandwidth configuration. In response, the user equipment can then determine one or more positioning measurements based on the positioning reference signal in the disjoint bandwidth segments.