Adaptive Measurement Gap Configuration for 5G Positioning
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Solution Overview
Problem
Existing wireless communication systems, particularly in the context of 5G networks, face challenges in efficiently managing measurement gaps for user equipment (UE) to perform network-controlled measurement gap (NCSG) configurations, leading to suboptimal performance in terms of spectral efficiency, signaling efficiency, and increased latency.
Innovation Solution
The implementation of dynamic configuration of measurement gaps, allowing user equipment to request and adapt measurement gap configurations based on network requirements, enhancing the UE's ability to perform efficient NCSG measurements and reduce handover latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measurement gaps are configured for all UEs to perform inter-RAT measurements, then measurement accuracy is improved, but network signaling overhead and power consumption increase
Solution Approach 1:
The patent applies local quality by configuring measurement gaps selectively based on individual UE characteristics and service requirements. The network determines which specific UEs need inter-RAT measurements and configures measurement gaps only for those UEs, rather than uniformly for all UEs. This targeted approach maintains measurement accuracy where needed while reducing overall signaling overhead.
Solution Approach 2:
The patent employs parameter changes by dynamically adjusting measurement gap configurations based on service types, UE capabilities, and network conditions. Different measurement gap patterns (e.g., pattern 0, pattern 1, pattern 2) are selected and configured according to specific service requirements, allowing the system to optimize between measurement accuracy and resource consumption.
2Measurement precision
If measurement gaps are configured for all UEs to perform inter-RAT measurements, then measurement accuracy is improved, but power consumption increases
Solution Approach 1:
The patent reduces power consumption by applying local quality - configuring measurement gaps only for specific UEs that require inter-RAT measurements based on their service requirements and UE characteristics. UEs without such requirements do not activate measurement gaps, thereby conserving battery power while maintaining measurement accuracy for UEs that need it.
Solution Approach 2:
The patent implements dynamics by making measurement gap configurations flexible and adaptable. The network can dynamically enable or disable measurement gaps for individual UEs based on changing service conditions, UE mobility states, and inter-RAT measurement requirements. This dynamic configuration ensures UEs consume power only when measurement activities are actually required.
3Reliability
If separate PDCCH configurations are used for different service types, then service-specific performance is improved, but configuration complexity increases
Solution Approach 1:
The patent applies universality by introducing a unified PDCCH configuration mechanism that can serve multiple service types. Instead of creating entirely separate PDCCH configurations for each service type, the system uses a common configuration framework with service-specific parameters that can be adjusted. This multi-functional approach maintains service-specific QoS requirements while reducing overall configuration complexity through shared structures.
4Reliability
If PDCCH monitoring is performed continuously, then control signal reception reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic action by configuring PDCCH monitoring to occur only during specific measurement gap periods rather than continuously. UEs activate PDCCH monitoring temporarily when measurement gaps are configured and deactivate it otherwise. This periodic monitoring approach maintains control signal reception reliability during critical measurement periods while significantly reducing power consumption during non-measurement periods.
Data Source
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AI summary
Disclosed are various techniques for wireless communication. In an aspect, a user equipment (UE) may determine a plurality of measurement gap (MG) configurations, each MG configuration defining one or more MGs. The UE may send, to a serving base station, a request to use a first MG configuration from the plurality of MG configurations, and may receive a response to the first request. The UE then measures positioning signals using an MG configuration indicated by the response. Based on measurements of the first set of positioning signals, the UE may select a second MG configuration, send a second request to use the second MG configuration, and receive a response to the second request. The UE then measures a second set of positioning signals using an MG configuration indicated by the response to the second request.