Inter-Frequency Measurement Timing for NTN Cell Switching
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Solution Overview
Problem
Existing wireless communication systems, particularly in non-terrestrial networks (NTNs), face challenges in effectively managing measurement times for inter-frequency neighbor cells due to propagation delays and inefficiencies in radio resource management, which can hinder seamless cell switching and network performance.
Innovation Solution
Implementing measurement time indications for UEs and wireless communication devices to manage measurement times for inter-frequency neighbor cells, allowing for precise signal reception and transmission adjustments during designated periods, thereby optimizing radio resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measurement times are not properly managed in NTNs, then propagation delays cause measurement inaccuracies, but implementing measurement time indications increases system complexity
Solution Approach 1:
The network device pre-configures measurement time indications to the UE before the UE performs measurements on inter-frequency neighbor cells. This preliminary configuration ensures that the UE knows exactly when to measure, accounting for propagation delays in advance, thereby improving measurement accuracy without requiring complex real-time adjustments.
Solution Approach 2:
The patent introduces measurement time indications as a new parameter that the network device configures for the UE. By changing the timing parameters of measurements based on propagation delay characteristics of NTNs, the system achieves accurate measurements while maintaining manageable complexity through standardized parameter configuration.
2Speed
If the UE continuously monitors inter-frequency neighbor cells, then cell switching responsiveness improves, but network resources are wasted
Solution Approach 1:
The network device configures the UE to perform measurements on inter-frequency neighbor cells only during specific measurement times indicated by the network. This periodic measurement approach allows the UE to quickly respond to cell switching opportunities when needed while avoiding continuous monitoring that would waste network resources and UE energy.
Solution Approach 2:
The network device pre-arranges measurement opportunities by providing measurement time indications to the UE. This allows the system to prepare for potential cell switching events in advance, ensuring rapid switching capability when necessary while conserving resources by not maintaining continuous monitoring.
3Measurement precision
If measurement opportunities are increased for inter-frequency neighbor cells, then measurement accuracy improves, but interference with ongoing communications increases
Solution Approach 1:
The patent implements periodic measurement opportunities configured by the network device, where the UE measures inter-frequency neighbor cells only during designated measurement times. This ensures sufficient measurement accuracy through repeated measurements while minimizing interference with ongoing communications by confining measurements to specific, controlled time intervals.
Solution Approach 2:
The network device pre-configures measurement time indications that schedule measurements in advance. This preliminary scheduling allows the system to optimize measurement opportunities without causing interference to ongoing communications, as the network can coordinate measurement times with active communication schedules.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a wireless communication device, a measurement time indication for measuring at least one signal associated with at least one inter-frequency neighbor cell. The UE may receive the at least one signal associated with the at least one inter-frequency neighbor cell based at least in part on the measurement time indication. Numerous other aspects are provided.