Hybrid Mode Positioning Scheme for Wireless Communication Systems
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Solution Overview
Problem
Current positioning schemes in wireless communication systems, such as those used in LTE and NR, face challenges in efficiently managing energy consumption, particularly in scenarios where user equipment (UE) needs to switch between UE-assisted and UE-based positioning modes, leading to increased power consumption and potential failures in channel conditions, especially in enhanced coverage areas.
Innovation Solution
A hybrid mode positioning scheme is introduced, where the UE switches between UE-assisted and UE-based positioning modes based on configured triggering conditions, such as reference signal received power (RSRP) thresholds, allowing the UE to autonomously estimate its position in enhanced coverage to reduce power consumption and signaling load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the UE uses UE-assisted positioning mode to transmit location information to the network, then positioning accuracy is maintained, but energy consumption increases
Solution Approach 1:
The patent implements dynamic positioning mode selection where the UE can switch between UE-assisted and UE-based positioning modes based on triggering conditions. The system dynamically adapts the positioning approach according to current network conditions, UE state, and service requirements, allowing optimization of energy consumption while maintaining positioning accuracy when needed.
Solution Approach 2:
The patent changes the operational parameters of the positioning system by introducing configurable triggering conditions that determine when to switch between positioning modes. These parameters include energy consumption thresholds, positioning accuracy requirements, and network condition indicators, allowing the system to adapt its behavior based on changing conditions.
2Adaptability or versatility
If the UE switches between positioning modes frequently, then adaptability to different scenarios is improved, but device complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the UE monitors triggering conditions and automatically switches positioning modes based on predefined criteria. The network provides feedback through configuration messages indicating when mode switching should occur, reducing the complexity burden on the UE by providing clear switching rules rather than requiring complex autonomous decision-making.
Solution Approach 2:
The patent segments the positioning operation into distinct modes (UE-assisted and UE-based) with clear transition conditions. By dividing the positioning functionality into separate operational modes with well-defined switching criteria, the system manages complexity through structured organization rather than requiring a single complex positioning algorithm to handle all scenarios.
3Loss of information
If the UE autonomously determines positioning mode switching, then signaling load is reduced, but reliability of mode selection may deteriorate
Solution Approach 1:
The patent introduces the network as an intermediary that provides triggering condition configurations to the UE. Rather than the UE making completely autonomous decisions or the network directly controlling every switching action, the network establishes the rules and conditions under which the UE should switch modes, balancing autonomy with reliability through this intermediary configuration role.
Data Source
AI summary
A method and apparatus for supporting a hybrid mode positioning scheme in a wireless communication system is provided. While using a first positioning mode, a user equipment (UE) receives information on a triggering condition for the positioning mode switch from a network, i.e. an evolved serving mobile location center (E-SMLC). The UE determines that the triggering condition is satisfied, and switches the positioning mode from the first positioning mode to a second positioning mode.