UE Sidelink Positioning Reference Signals With QCL Coordination
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Solution Overview
Problem
Existing wireless communication systems lack flexibility and efficiency, particularly in managing communication structures for enhanced Mobile BroadBand (eMBB), massive Machine Type Communication (mMTC), and Ultra Reliable and Low Latency Communication (URLLC) scenarios.
Innovation Solution
Implementing user equipment (UE) with higher layer processing circuitry to receive and transmit sidelink positioning reference signals (SL-PRS) that indicate quasi-co-location (QCL) information, utilizing OFDM symbols with cyclic prefixes and discrete Fourier transform-spread-OFDM, and managing resource grids and bandwidth parts to enhance communication flexibility and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing wireless communication systems use traditional communication structures, then system simplicity is maintained, but communication flexibility and efficiency are limited
Solution Approach 1:
The patent implements dynamic communication structure adaptation where user equipment can switch between different communication modes (eMBB, mMTC, URLLC) based on service requirements. The system dynamically adjusts resource allocation, timing parameters, and signal transmission configurations to match the specific needs of each communication scenario, thereby achieving high flexibility without being locked into a single rigid structure.
Solution Approach 2:
The patent utilizes parameter changes to resolve the contradiction by adjusting key communication parameters such as subcarrier spacing, cyclic prefix length, and resource grid configuration. These parameters are modified according to the specific requirements of different communication scenarios, enabling the system to adapt to varying flexibility and efficiency needs while maintaining manageable structural complexity through standardized parameter sets.
2Productivity
If existing wireless communication systems use traditional communication structures, then implementation simplicity is maintained, but communication efficiency is limited
Solution Approach 1:
The patent segments the communication system into distinct functional components: user equipment, base station, and network resources. Each component is independently configured and optimized for specific communication scenarios. The resource grid is divided into multiple bandwidth parts and time resources, allowing efficient allocation and management. This segmentation enables improved communication efficiency through targeted optimization of each segment while keeping the overall structure manageable.
Solution Approach 2:
The patent implements preliminary configuration of communication parameters and resource allocation before actual data transmission. The system pre-configures bandwidth parts, time resources, and signal transmission settings based on predicted communication needs. This preliminary action reduces real-time processing complexity and enables more efficient communication by having all necessary parameters ready in advance, thereby improving productivity without proportionally increasing operational complexity.
3Measurement precision
If user equipment transmits sidelink positioning reference signals with QCL information, then positioning accuracy is improved, but signal transmission complexity increases
Solution Approach 1:
The patent introduces quasi-co-location (QCL) information as an intermediary element that links positioning reference signals to existing communication resources. Instead of directly measuring positioning parameters from scratch, the system uses QCL information to infer spatial relationships from already-transmitted signals. This intermediary approach enables accurate positioning without requiring entirely new signal transmission mechanisms, thereby improving measurement precision while limiting the increase in transmission complexity to primarily information processing rather than physical layer complexity.
Data Source
AI summary
A user equipment (UE) comprising is described. The UE may comprise higher layer processing circuitry configured to receive first information, and reception circuitry configured to receive sidelink positioning reference signal (SL-PRS), wherein the first information is information indicating a source of quasi-co-location (QCL) of the SL-PRS.