Mode 1 Sidelink PRS Pools for 5G NR Positioning
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently configuring mode 1 resource allocation for positioning reference signals in sidelink communications, particularly in unlicensed and licensed spectrum environments, which affects the accuracy and efficiency of location determination in 5G-NR networks.
Innovation Solution
The proposed solution involves techniques for configuring mode 1 resource allocation of positioning reference signals for sidelink communications, utilizing 3GPP LTE and 5G-NR networks, including mechanisms for carrier aggregation, dual connectivity, and unlicensed spectrum operations like MulteFire, to optimize the allocation of resources for positioning reference signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If mode 1 resource allocation is configured for positioning reference signals in sidelink communications, then location determination accuracy is improved, but system complexity increases
Solution Approach 1:
The resource allocation configuration is segmented into multiple independent parameters including time resources, frequency resources, and transmission parameters. Each parameter can be independently configured and optimized for positioning reference signals while maintaining compatibility with existing sidelink communication frameworks, thereby reducing overall configuration complexity.
Solution Approach 2:
The mode 1 resource allocation mechanism is designed to serve multiple functions: positioning reference signal transmission, location determination, and compatibility with both licensed and unlicensed spectrum operations. This multi-functionality reduces the need for separate dedicated configurations for each function.
2Productivity
If resource allocation is optimized for positioning reference signals, then location determination efficiency is improved, but network configuration complexity increases
Solution Approach 1:
The network configuration utilizes parameter changes in resource allocation patterns, time frequency resources, and transmission parameters to optimize location determination efficiency. By dynamically adjusting these parameters based on network conditions and positioning requirements, the system achieves improved efficiency without requiring fundamentally new configuration mechanisms.
3Area of stationary object
If positioning reference signals are allocated in unlicensed spectrum, then network coverage is improved, but signal interference increases
Solution Approach 1:
The resource allocation configuration implements periodic transmission patterns for positioning reference signals in unlicensed spectrum. By using periodic action with appropriate time gaps and repetition patterns, the system maintains network coverage while allowing other communications to access the spectrum, thereby reducing signal interference.
Solution Approach 2:
The configuration ensures continuous availability of positioning reference signals through multiple transmission opportunities and resource allocation patterns. This continuity maintains network coverage while the distributed transmission timing reduces concurrent interference with other spectrum users.
Data Source
AI summary
A computer-readable storage medium stores instructions to configure a base station for mode 1 resource allocation for sidelink (SL) positioning in a 5G NR network, and to cause the UE to perform operations including decoding RRC signaling, LTE positioning protocol (EPP) signaling received from a base station for an in-coverage scenario, and/or sidelink positioning protocol (SEPP) signaling from a second UE. The EPP, RRC, or SEPP signaling respectively includes configuration information configuring a resource pool associated with positioning reference signal communications. The DCI is decoded from the base station using a PDCCH. The DCI indicates a resource pool index and/or the presence of a sidelink positioning reference signal (SL PRS) in the indicated resource pool. An SL PRS is encoded for transmission to the second UE using the indicated resource pool.