Handover Service Interruption Measurement Using Split Time Values
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately measuring service interruptions during handovers, particularly in LTE and NR technologies, as devices often have limited access to the necessary information for determining comprehensive service interruption measurements, which can impact network performance and quality of service.
Innovation Solution
The proposed solution involves methods and apparatuses for determining and exchanging service interruption measurements during handovers, including UE-side and network-side interruptions, through the use of time values and measurement configurations, applicable to various handover types such as intra-RAT, inter-RAT, conditional, and make-before-break handovers, enabling end-to-end mobility interruption measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If service interruption measurement is performed during handover, then measurement precision is improved, but device complexity increases due to limited access to necessary information
Solution Approach 1:
The service interruption measurement is segmented into multiple time values: a first time value determined by the UE (e.g., handover execution time) and a second time value determined by the network node (e.g., handover preparation time). This segmentation allows each entity to measure and report only the time values accessible to them, simplifying the information access requirement while maintaining overall measurement precision through aggregation of multiple time value components.
2Reliability
If comprehensive service interruption measurement is implemented, then reliability is improved, but loss of information is reduced as devices exchange measurement data
Solution Approach 1:
The network node requests service interruption measurement information from the UE and receives the measured time values as feedback. This feedback mechanism ensures that the network obtains necessary measurement data from the UE side, which would otherwise be unavailable to the network node, thereby reducing information loss and improving QoS compliance through comprehensive measurement data aggregation.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a measurement configuration for a service interruption measurement regarding a handover of the UE from a source cell to a target cell. The UE may transmit measurement information that identifies at least one of the service interruption measurement or a time value used to determine the service interruption measurement. Numerous other aspects are provided.