Scheduling Radio Measurement Gaps in Non-Terrestrial Networks
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Solution Overview
Problem
In non-terrestrial networks, client devices often experience unnecessary radio measurement gaps due to varying cell serving durations and the network's lack of precise location information, leading to reduced throughput and inefficient resource utilization.
Innovation Solution
A client device determines if radio measurement gaps are needed based on specific criteria such as location, trajectory, and data buffer information, and transmits a suspension request to the radio access network node to skip or reschedule these gaps, allowing for uninterrupted data transmission and control channel monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network schedules radio measurement gaps for all UEs, then radio measurement coverage is improved, but throughput is reduced due to unnecessary gaps
Solution Approach 1:
The patent applies local quality by allowing different UEs to have different measurement gap configurations based on their specific conditions. UEs that need measurement gaps receive them, while UEs that don't need them (based on location, trajectory, or other criteria) have their gaps suspended, thus optimizing throughput without compromising measurement coverage where needed.
Solution Approach 2:
The patent implements dynamics by making the measurement gap configuration adaptive rather than static. The network can dynamically suspend or activate measurement gaps for individual UEs based on changing conditions such as UE location, cell serving duration, and traffic requirements, allowing the system to optimize performance in real-time.
2Reliability
If the network configures measurement gaps without precise location information, then measurement coverage is maintained, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent applies preliminary action by having UEs provide location information or trajectory data in advance. This allows the network to predict when and where measurement gaps will be needed and pre-configures or suspends gaps accordingly, avoiding unnecessary resource allocation while maintaining measurement coverage where and when it is actually needed.
3Ease of manufacture
If measurement gaps are scheduled uniformly for all UEs, then implementation simplicity is improved, but adaptability to different UE conditions deteriorates
Solution Approach 1:
The patent applies segmentation by dividing the UE population into different groups based on their measurement needs. Instead of a uniform approach, the system segments UEs based on location, trajectory, cell serving duration, and other criteria, allowing customized measurement gap configurations for each segment while maintaining a relatively simple overall implementation through standardized procedures.
Data Source
AI summary
Devices, methods and computer programs for avoiding unnecessary radio measurement gaps in a non-terrestrial network are disclosed. At least some example embodiments may allow replacing an unused radio measurement gap with an option of scheduling to improve network scheduling flexibility, user throughput and/or latency, and client device battery life.