Sensing Task Handover for Continuity Across Moving Nodes
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Solution Overview
Problem
Wireless sensing technologies face challenges in maintaining continuity and stability of sensing tasks due to movement of communication apparatuses or to-be-sensed targets, leading to interruptions in sensing quality of service.
Innovation Solution
A sensing task handover method involving a first communication apparatus sending a handover request to a second communication apparatus with indication information of the sensing task context, and receiving a response indicating agreement or rejection to ensure seamless handover and continuity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a communication apparatus moves or the to-be-sensed target moves away, then the sensing task can be transferred to another node, but the sensing quality of service may be interrupted during the movement
Solution Approach 1:
The patent implements preliminary action by establishing a handover preparation phase where the source sensing node identifies candidate target nodes and pre-evaluates their sensing capabilities before actual handover occurs. This includes the source node determining whether handover is needed based on sensing quality metrics, selecting potential target nodes, and assessing their ability to maintain sensing service continuity, thereby preventing service interruption before it happens.
Solution Approach 2:
The patent uses an intermediary approach by introducing a handover management mechanism that coordinates between source sensing nodes, target sensing nodes, and the network device. This intermediary system manages the handover process including capability indication, selection, and execution, ensuring seamless transition of sensing tasks without service interruption.
2Reliability
If the source sensing node continuously monitors sensing quality to detect handover needs, then sensing task stability is improved, but energy consumption increases
Solution Approach 1:
The patent applies partial action by implementing selective and conditional monitoring of sensing quality parameters. Instead of continuous full-scale monitoring, the source sensing node performs monitoring only when necessary based on predetermined conditions such as signal quality thresholds, movement detection, or time-based intervals. This reduces energy consumption while maintaining sensing task stability through targeted monitoring of critical parameters.
3Measurement precision
If the handover request includes detailed context information of the sensing task, then the target node can accurately determine its capability, but the signaling overhead increases
Solution Approach 1:
The patent implements segmentation by dividing the handover context information into structured categories such as sensing task identification, sensing parameter requirements, performance metrics, and capability indicators. This segmented approach allows the target sensing node to efficiently process and evaluate only the relevant portions of context information needed for capability determination, reducing signaling overhead while maintaining accurate assessment.
Solution Approach 2:
The patent uses parameter changes by dynamically adjusting the level of detail in handover context information based on the specific sensing task requirements, node capabilities, and network conditions. The system can modify which parameters are included in handover requests, using compressed or simplified parameter sets when full detail is not necessary, thereby reducing signaling overhead while preserving sufficient information for accurate capability determination.
Data Source
AI summary
A sensing task handover method and an apparatus are provided. The method includes: A first communication apparatus sends a first handover request to a second communication apparatus, where the first handover request includes indication information of a context of a sensing task; and the first communication apparatus receives a first handover response from the second communication apparatus, where the first handover response includes indication information indicating whether to agree to the first handover request. In a scenario in which a to-be-sensed target and/or the first communication apparatus move/moves, the first communication apparatus cannot continue to support a current sensing task, or the like, continuity and stability of the sensing task are implemented through handover of the sensing task.