Combined Measurement Report Mapping for Wireless Positioning
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Solution Overview
Problem
Current measurement reporting in wireless communication networks, particularly in LTE, faces challenges with resolution limitations and the need for adaptive reporting to accommodate new deployment types and advanced wireless technologies, especially in indoor positioning where higher accuracy is required.
Innovation Solution
The implementation of combined measurement report mapping with adaptive resolution, allowing wireless devices and network nodes to use a combined measurement report with two reported levels that jointly represent a single measurement result, enabling finer granularity and adaptive resolution of measurement results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional single-level measurement report mapping is used, then signaling overhead is reduced, but measurement precision and positioning accuracy deteriorate
Solution Approach 1:
The measurement report is segmented into multiple fields with different resolutions. The first field reports a coarse measurement value with larger quantization steps, while the second field reports a fine measurement value with smaller quantization steps. This segmentation allows the system to achieve high measurement precision without transmitting excessive signaling information, as only the necessary precision level is transmitted for each measurement scenario.
Solution Approach 2:
The system dynamically selects between different report mapping modes (first report mapping or second report mapping) based on measurement conditions, requirements, and configuration. The resolution and quantization steps are dynamically adjusted according to the specific measurement scenario, allowing optimal balance between measurement precision and signaling overhead for different operational contexts.
2Adaptability or versatility
If fixed resolution measurement reporting is used, then device complexity is reduced, but adaptability to different deployment types deteriorates
Solution Approach 1:
The measurement reporting mechanism is designed to be universal and multi-functional, supporting multiple deployment types (indoor, outdoor, macro, small cell) and multiple measurement scenarios through a single unified framework. The system can adaptively configure different report mapping modes and resolution levels to suit various deployment requirements, eliminating the need for separate reporting mechanisms for different scenarios.
Solution Approach 2:
The system changes key parameters such as resolution, quantization steps, and report mapping mode based on deployment type and measurement requirements. By dynamically adjusting these parameters, the system achieves high adaptability to different deployment scenarios without requiring fundamentally different reporting mechanisms, thus managing device complexity while enhancing versatility.
3Measurement precision
If high resolution measurement reporting is always used, then positioning accuracy is improved, but signaling overhead increases
Solution Approach 1:
The reporting mechanism segments measurement information into different precision levels. Instead of always transmitting full-resolution data, the system transmits coarse measurements when high positioning accuracy is not required, and only transmits fine-resolution measurements when needed. This segmentation significantly reduces average signaling overhead while maintaining positioning accuracy when required.
Solution Approach 2:
The system applies partial high-resolution reporting only when necessary for accurate positioning, rather than always using maximum resolution. By applying high-resolution reporting selectively and partially (only when needed), the system achieves required positioning accuracy without the excessive signaling overhead that would result from always using high-resolution reporting.
Data Source
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Figure 1d
AI summary
A first, second and third node as well as methods performed thereby are provided for providing a measurement result to the second node by the wireless device. The method performed by the wireless device comprises obtaining an adaptive resolution factor; and providing a combined measurement report based on the obtained adaptive resolution factor and a measurement result, wherein a combined measurement report comprises at least two reported levels, which jointly represents the measurement result, to the second node.