Dynamic Measurement Gap Configuration for 5G Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems, particularly in the context of 5G, face challenges in efficiently managing measurement gaps for performing radio resource management (RRM) and positioning reference signal (PRS) measurements, as existing methods often result in measurement gaps that do not coincide with PRS transmissions, leading to inefficiencies and increased latency in positioning procedures.
Innovation Solution
The implementation of dynamic measurement gap configuration methods, where base stations use higher and lower layer signaling to configure and modify measurement gaps, allowing user equipment (UE) to perform measurements during specified gaps, and enabling the UE to request updates to measurement gap configurations, thereby aligning measurement gaps with PRS transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If measurement gaps are configured using existing methods, then the basic measurement function is provided, but the measurement gaps do not coincide with PRS transmissions causing increased latency and reduced positioning efficiency
Solution Approach 1:
The patent implements dynamic measurement gap configuration where the base station can modify measurement gap parameters (duration, periodicity, offset) in response to UE requests and positioning needs. This dynamic adjustment allows measurement gaps to be aligned with PRS transmission schedules, resolving the latency issue while maintaining positioning efficiency.
Solution Approach 2:
The patent changes the parameters of measurement gap configurations based on UE positioning requirements and network conditions. By adjusting parameters such as gap duration, periodicity, and timing offset, the system achieves alignment between measurement gaps and PRS transmissions, thereby reducing latency and improving positioning efficiency simultaneously.
2Reliability
If measurement gap configurations are modified dynamically, then alignment with PRS transmissions is improved, but signaling complexity increases
Solution Approach 1:
The patent employs feedback mechanisms where the UE signals its measurement needs and positioning requirements to the base station. The base station uses this feedback information to dynamically adjust measurement gap configurations, ensuring reliable alignment with PRS transmissions while managing signaling complexity through targeted information exchange.
Solution Approach 2:
The patent applies preliminary configuration of measurement gaps based on predicted positioning needs and PRS schedules. By pre-configuring measurement gaps according to anticipated requirements, the system reduces real-time signaling complexity while maintaining reliable alignment, as the basic configuration is established in advance and only minor adjustments are needed.
Data Source
AI summary
Disclosed are various techniques for wireless communication. In an aspect, a user equipment (UE) receives, from a serving base station via higher layer signaling, a plurality of measurement gap configurations, receives, from the serving base station via lower layer signaling, an activation of a first measurement gap configuration of the plurality of measurement gap configurations, and performs one or more measurements of one or more non-serving base stations during measurement gaps specified by the first measurement gap configuration. Other techniques related to dynamic configuration of measurement gap configurations are also disclosed.