PRS Puncturing Identification via SSB Location Parameters
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, particularly in 5G networks, there is a challenge in determining the time and frequency locations of synchronization signal blocks (SSBs) of neighboring transmission-reception points (TRPs) to effectively puncture positioning reference signals (PRS), which is crucial for efficient communication and positioning reference signal configuration.
Innovation Solution
A method where user equipment (UE) receives parameters from a network entity indicating the time and frequency locations of SSBs of serving or neighboring TRPs, allowing the UE to determine which PRS configurations have been punctured by the SSBs, enabling precise communication and positioning operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE determines PRS puncturing by autonomously detecting neighboring SSB locations, then the UE can identify punctured PRS configurations, but the system complexity and processing time increase due to additional detection and measurement operations
Solution Approach 1:
The network entity acts as an intermediary by providing the UE with pre-configured information about neighboring SSB locations through network entities. This eliminates the need for the UE to autonomously detect and measure neighboring SSBs, thereby reducing UE processing complexity while maintaining reliable identification of punctured PRS configurations.
Solution Approach 2:
The network entity performs preliminary action by pre-determining and providing the UE with information about which PRS configurations will be punctured by neighboring SSBs. This advance preparation allows the UE to efficiently identify punctured PRS without performing complex real-time analysis, thus improving reliability while reducing processing burden.
2Measurement precision
If the network provides detailed SSB location parameters to the UE, then the UE can accurately determine punctured PRS configurations, but the signaling overhead and network entity processing load increase
Solution Approach 1:
The network entity extracts only the essential information needed for PRS puncturing identification - specifically, the set of PRS configuration indices that will be punctured by neighboring SSBs. This selective information provision achieves the required measurement precision for determining punctured PRS configurations while minimizing unnecessary signaling overhead.
Solution Approach 2:
The network provides localized, cell-specific information about neighboring SSB locations and puncturing patterns rather than comprehensive global data. This targeted approach delivers the precise information needed for PRS configuration identification while reducing overall signaling load compared to broadcasting complete SSB location databases.
3Reliability
If the UE performs comprehensive analysis of all PRS configurations to identify punctured ones, then the accuracy of positioning operations is improved, but the time required for processing increases
Solution Approach 1:
The network entity performs preliminary analysis and pre-determines which PRS configurations will be punctured by neighboring SSBs. This advance preparation provides the UE with ready-to-use information that directly identifies punctured configurations, thereby achieving high positioning accuracy while significantly reducing the time the UE would otherwise need to spend analyzing all PRS configurations.
Solution Approach 2:
The network entity serves as an intermediary that performs the time-consuming analysis of PRS configuration puncturing patterns. By offloading this computational task to the network, the UE can quickly and accurately identify punctured configurations without performing comprehensive analysis itself, thus maintaining positioning accuracy while reducing processing time.
Data Source
AI summary
Disclosed are techniques for wireless communication. In an aspect, a method of wireless communication performed by a user equipment (UE) includes receiving, from a network entity, a plurality of positioning reference signal (PRS) configurations for one or more serving or neighboring transmission-reception points (TRPs), receiving, from the network entity, a set of parameters that indicate time and frequency locations of one or more synchronization signal blocks (SSBs) of the one or more serving or neighboring TRPs, and determining which PRS of the plurality of PRS configurations have been punctured by the one or more SSBs based on the set of parameters.