PLMN Positioning Parameter Segmentation for Accuracy
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Solution Overview
Problem
Current wireless communication systems face challenges in accurately determining the location of user equipment (UE) across multiple public land mobile networks (PLMNs), particularly in supporting positioning operations across diverse networks and frequency bands, which affects the precision and reliability of positioning services.
Innovation Solution
A method involving user equipment (UE) and a location server that exchange parameters to configure and measure positioning resources across multiple PLMNs, utilizing positioning reference signals (PRS) to determine the UE's location, enabling accurate positioning across various networks and frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If positioning operations are performed across multiple PLMNs and frequency bands, then positioning accuracy is improved, but system complexity increases
Solution Approach 1:
The patent segments the positioning capability information into multiple distinct parameter sets, each corresponding to different PLMN scenarios (serving PLMN, non-serving PLMN, equivalent PLMN). This segmentation allows the UE to selectively report only the relevant capability information for the current network context, improving positioning accuracy across multiple PLMNs while avoiding unnecessary complexity from reporting all possible scenarios.
Solution Approach 2:
The patent implements dynamic capability reporting where the UE adapts its parameter reporting based on the current serving PLMN and network conditions. The location server dynamically requests specific capability information needed for the current positioning scenario, allowing the system to maintain high positioning accuracy while minimizing the complexity of information exchange by only reporting what is currently needed.
2Reliability
If comprehensive capability parameters are reported to support all PLMN scenarios, then positioning reliability is improved, but information exchange overhead increases
Solution Approach 1:
The patent applies local quality by tailoring the capability parameter reporting to the specific PLMN scenario. Instead of uniformly reporting all possible capability parameters regardless of context, the UE reports capability information that is locally relevant to the current serving PLMN or target PLMN scenario. This ensures positioning reliability for each specific scenario while minimizing unnecessary information overhead.
Solution Approach 2:
The patent creates a universal capability reporting framework where a single set of parameter structures can serve multiple PLMN scenarios (serving PLMN, non-serving PLMN, equivalent PLMN). The same capability parameter formats are reused across different scenarios with scenario-specific interpretations, ensuring positioning reliability across diverse PLMNs while reducing information overhead through parameter reuse and standardization.
Data Source
AI summary
Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) transmits, to a location server, a first set of parameters indicating capabilities of the UE to support positioning operations across a plurality of public land mobile networks (PLMNs), receives assistance data from the location server, the assistance data including a second set of parameters configuring the UE to measure a set of positioning resources across one or more PLMNs of the plurality of PLMNs, and obtains positioning measurements of the set of positioning resources to enable a determination of a location of the UE.