LPP Positioning Latency Control via Dynamic Panel Activation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In 5G wireless systems, existing positioning technologies face challenges in achieving low latency and high accuracy due to limitations in simultaneous panel activation and beam switching, which restricts the ability to conduct simultaneous measurements across a wide angular range, leading to increased latency and decreased positioning accuracy.
Innovation Solution
A method is introduced that allows user equipment (UE) to switch between multiple measurement modes within a measurement gap occasion, optimizing panel activation and beam prioritization based on latency requirements, using a new measurement gap framework and LPP signaling to control latency and accuracy, enabling flexible inter-frequency measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the UE scans all angular directions to achieve high positioning accuracy, then measurement precision is improved, but the time required increases leading to increased latency
Solution Approach 1:
The patent applies partial action by allowing the UE to perform measurements on a subset of angular directions rather than scanning all directions. The network can configure the UE to measure only specific beams or panels that are most relevant for positioning, thereby reducing measurement time and latency while maintaining sufficient positioning accuracy for the application requirements
2Measurement precision
If the UE activates multiple receive and transmit panels simultaneously to improve measurement capability, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamics by enabling flexible and dynamic panel activation based on configuration from the network. The UE can adaptively activate different combinations of receive and transmit panels according to the specific positioning scenario, allowing simultaneous activation of multiple panels when needed while maintaining lower complexity when fewer panels suffice
Solution Approach 2:
The patent applies parameter changes by allowing the network to configure the number and type of panels to be activated based on positioning requirements. The UE can change its operational parameters (which panels are active) dynamically according to the configured measurement scenario, optimizing the balance between measurement capability and device complexity
3Measurement precision
If the UE performs beam sweeping to cover all angular directions, then positioning accuracy is improved, but the measurement time increases leading to increased latency
Solution Approach 1:
The patent applies partial action by enabling the UE to perform beam sweeping only on a configured subset of beams rather than all possible beams. The network can limit the beam sweeping range to only those directions that are relevant for positioning, thereby reducing measurement time while maintaining sufficient angular coverage for accurate positioning
Data Source
AI summary
Systems, methods, apparatuses, and computer program products for positioning measurements are provided. One method may include receiving, from a user equipment, a number of supported receive and transmit panels that can be simultaneously activated and/or a panel switch time. The method may then include computing or otherwise determining a UE-based latency lag using the number of supported receiver and transmitter panels that can be simultaneously activated and the panel switch time.