5G NR Band Selection for Tuneless Positioning Measurement Gaps
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently measuring positioning reference signals due to retuning times during measurement gaps, which affect positioning accuracy and increase power consumption in user equipment.
Innovation Solution
The method involves determining measurement gap information for multiple frequency layers, selecting bands with zero retuning times (tuneless measurement gaps) to maximize the number of positioning reference signals measured, and computing location information based on these measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measurement gaps are used to measure positioning reference signals in different bands, then positioning accuracy is improved, but retuning times increase and power consumption increases
Solution Approach 1:
The user equipment determines measurement gap information and identifies tuneless measurement gaps in advance, where the gap duration is pre-calculated to accommodate the specific band's tuning requirements. By preparing the measurement gap configuration before actual measurement, the system eliminates unnecessary retuning operations while maintaining positioning accuracy across multiple bands.
2Measurement precision
If measurement gaps are used to measure positioning reference signals in different bands, then positioning accuracy is improved, but power consumption increases
Solution Approach 1:
The patent extracts and identifies tuneless measurement gaps from the overall measurement gap configuration, where the gap duration is specifically optimized to match the actual tuning requirements of each band. By removing unnecessary tuning operations from the measurement process, the system reduces power consumption while maintaining the ability to measure positioning reference signals across multiple bands with sufficient accuracy.
3Measurement precision
If multiple bands are measured to improve positioning accuracy, then positioning accuracy is improved, but the complexity of determining measurement gap information increases
Solution Approach 1:
The patent segments the measurement gap determination process by band, where each band's measurement gap characteristics are independently analyzed and optimized. The user equipment identifies tuneless measurement gaps specific to each band's requirements, allowing complex multi-band measurements to be broken down into manageable, band-specific segments that can be processed systematically without overwhelming complexity.
Data Source
AI summary
Techniques are provided for selecting measurement gap periods for positioning user equipment, UE, in 5G NR. A method for positioning a user equipment includes receiving (1302) positioning assistance data associated with one or more frequency layers from a network, determining (1304) measurement gap information for one or more bands associated with the one or more frequency layers, determining (1306) a number of available positioning reference signals for each of the one or more bands based on the positioning assistance data and the measurement gap information, measuring (1308) one or more positioning reference signals for a selected band, wherein the selected band is based on the number of available positioning reference signals in a measurement gap, and computing (1310) location information based at least in part on one or more positioning reference signal measurements.