PRS Bandwidth Aggregation Across Multi-PFL Cellular Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently supporting high-density mobile broadband users with enhanced positioning techniques, particularly in LTE and 5G NR systems, due to limitations in processing procedures for positioning reference signals (PRS) across multiple frequency layers.
Innovation Solution
Implementing configuration and capability signaling for enhanced positioning techniques by supporting multi-PRS bandwidth aggregation across multiple positioning frequency layers (PFLs) with shared common parameters, allowing for mixed single and multi-carrier PRS aggregation, and enabling UE-based positioning estimations using contiguous, non-contiguous, or overlapping PRS configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If PRS resources are aggregated across multiple positioning frequency layers (PFLs) to enhance positioning accuracy, then positioning precision is improved, but device complexity increases due to multi-carrier processing requirements
Solution Approach 1:
The patent segments PRS resources into multiple positioning frequency layers (PFLs), where each PFL contains PRS resources from one or more component carriers. This segmentation allows the UE to process PRS resources in a structured manner across multiple frequency layers, enhancing positioning accuracy while managing device complexity through organized resource grouping.
Solution Approach 2:
The patent enables PRS resources to serve multiple functions by allowing aggregation across different component carriers and frequency layers. The same PRS resource configuration can be applied across multiple component carriers within a PFL, and multiple PFLs can be aggregated, providing universal positioning capability that improves accuracy without proportionally increasing complexity.
2Quantity of substance
If multiple positioning frequency layers (PFLs) are configured on separate component carriers (CCs) to support high-density users, then system capacity is improved, but loss of time increases due to extended processing requirements
Solution Approach 1:
The patent applies preliminary action by configuring multiple PFLs on separate component carriers in advance, with each PFL pre-configured with PRS resources. This allows the UE to have multiple positioning resources ready simultaneously, enabling high-density user support without sequential processing delays, thus improving system capacity while minimizing processing time loss.
3Productivity
If PRS bandwidth aggregation is implemented across multiple component carriers to support higher throughput, then productivity is improved, but device complexity increases due to multi-carrier aggregation requirements
Solution Approach 1:
The patent introduces a new dimension by organizing PRS resources across multiple component carriers in the frequency domain through positioning frequency layers. Instead of simple time-domain aggregation, the invention adds frequency layer aggregation as another dimension, allowing parallel processing of multiple PFLs simultaneously, which improves throughput while managing device complexity through structured multi-dimensional resource organization.
Data Source
AI summary
Apparatuses, systems, and methods for enhanced positioning techniques using configuration and capability signaling in cellular systems. A method may include reporting, to a network node, an indication of one or more user equipment (UE) capability parameters associated with a processing procedure for positioning reference signal (PRS) bandwidth aggregation. The method may include receiving, from the network node and associated with the reported one or more UE capability parameters, a configuration for the processing procedure which supports multiple positioning frequency layer (multi-PFL) processing for aggregation of PRS resources across a plurality of PFLs and further supports one or more PFL groups comprising the plurality of PFLs to be configured on one or more component carriers (CCs). Additionally, respective PRS resources in respective PFL groups may share one or more common parameters and the method may further include performing, based on the received configuration, the processing procedure.