RRC Idle Positioning via Paging DCI Configurations
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing positioning in RRC_IDLE or RRC_INACTIVE states, particularly in terms of power consumption and positioning accuracy, due to the need for continuous monitoring and positioning measurements.
Innovation Solution
The implementation of a base station and user equipment system that determines and transmits configurations for downlink positioning reference signals and uplink sounding reference signals, with the option to skip certain positioning measurements based on paging procedures, such as paging DCI, short message, or paging PDSCH, to conserve power and improve efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If continuous positioning measurements are performed in RRC_IDLE or RRC_INACTIVE states, then positioning accuracy is maintained, but power consumption increases
Solution Approach 1:
The patent implements periodic positioning measurements triggered by paging messages instead of continuous monitoring. The UE performs positioning measurements only at specific paging occasions when positioning is indicated, converting continuous operation into periodic action to reduce power consumption while maintaining positioning accuracy when needed
Solution Approach 2:
The patent dynamically adjusts positioning measurement behavior based on network conditions and UE state. The network can configure different positioning measurement scenarios (PMSC) and the UE adapts its measurement activity accordingly, performing measurements only when explicitly indicated by paging messages or when transitioning to active states
2Measurement precision
If positioning measurements are performed frequently, then positioning accuracy is improved, but device complexity increases
Solution Approach 1:
The patent segments positioning measurements into different measurement scenarios (PMSC) that can be independently configured and triggered. Each PMSC represents a distinct positioning measurement configuration that can be activated selectively, reducing the overall complexity by dividing the positioning function into manageable, independently controllable segments
Solution Approach 2:
The patent implements partial positioning measurements by only performing measurements when explicitly indicated by the network through paging messages or DCI formats. The UE does not continuously monitor all positioning signals but only performs partial measurements when needed, reducing computational complexity while maintaining necessary positioning accuracy
Data Source
AI summary
Methods and apparatuses for positioning in RRC_IDLE or RRC_INACTIVE states. A method of a user equipment (UE) in a wireless communication system includes determining a first set of configurations for positioning and determining a second set of configurations for positioning. The first and second sets of configurations include configurations for a downlink (DL) positioning reference signal (PRS) based positioning measurement or an uplink (UL) sounding reference signal (SRS) transmission. The method further includes receiving a downlink control information (DCI) format including an indication on which of the first or second sets of configurations to use for positioning.