PRS Measurement Periods Using Receive Beam Sweeping Capability
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G, face challenges in efficiently measuring positioning reference signals (PRS) due to limitations in receive beam sweeping capabilities and measurement periods.
Innovation Solution
A method and system for enhancing PRS measurement periods in user equipment (UE) by utilizing a receive beam sweeping capability parameter to determine the number of repetitions of a PRS resource on a positioning frequency layer, allowing for more effective PRS measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of PRS resource repetitions is increased to improve measurement accuracy, then the measurement precision is improved, but the measurement period duration increases
Solution Approach 1:
The patent applies dynamics by making the receive beam sweeping capability parameter configurable and adaptive. The UE can dynamically adjust the number of repetitions based on its beam sweeping capability, allowing the system to optimize between measurement accuracy and measurement period duration in real-time conditions rather than using fixed configurations.
Solution Approach 2:
The patent changes the parameter of receive beam sweeping capability to control the relationship between measurement accuracy and period duration. By adjusting this parameter, the system can vary the number of PRS repetitions, thereby changing the measurement characteristics to achieve the desired balance between precision and time consumption.
2Measurement precision
If the receive beam sweeping capability parameter is increased to allow more repetitions, then the positioning accuracy is improved, but the processing complexity increases
Solution Approach 1:
The patent segments the PRS measurement process into multiple repetitions, where each repetition can be processed independently. The receive beam sweeping capability parameter divides the overall measurement task into manageable units, allowing the UE to process each repetition separately and accumulate results, thereby improving positioning accuracy without overwhelming the processing capabilities.
Solution Approach 2:
The patent implements partial action by allowing the UE to perform a configurable number of repetitions based on its capability parameter. Rather than requiring all possible repetitions, the system performs an optimal subset that achieves sufficient positioning accuracy while keeping processing complexity within acceptable limits for the specific UE.
3Reliability
If the measurement period is extended to include more repetitions, then the reliability of positioning measurements is improved, but the loss of time increases
Solution Approach 1:
The patent uses periodic action by implementing multiple repetitions of PRS resources within the measurement period. Each repetition provides an additional opportunity to measure positioning signals, and by configuring the appropriate number of repetitions through the receive beam sweeping capability parameter, the system achieves reliable measurements through periodic sampling rather than requiring excessively long continuous measurement periods.
Data Source
AI summary
Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) performs one or more positioning measurements of one or more repetitions of a first positioning reference signal (PRS) resource on a first positioning frequency layer of at least a first PRS instance using a first receive beam, wherein a number of the one or more repetitions of the first PRS resource is based on a receive beam sweeping capability parameter of the UE, the receive beam sweeping capability parameter indicating a number of repetitions of a PRS resource on a positioning frequency layer of a PRS instance for which the UE is expected to use the same receive beam, and reports the one or more positioning measurements to a positioning entity.