Sensing Function Node List Management for ISAC Service Continuity
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Solution Overview
Problem
The design of sensing service continuity for Integrated Sensing and Communications (ISAC) systems is not yet defined, posing a significant challenge for newly developed wireless communication systems.
Innovation Solution
Proposed schemes for sensing service continuity in ISAC systems involve node list maintenance, sensing node operations, and sensing node switching, including the selection and updating of sensing nodes based on their capabilities, locations, and channel conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensing nodes are dynamically selected and updated based on capabilities and channel conditions, then sensing service continuity is improved, but system complexity increases
Solution Approach 1:
The patent implements dynamic sensing node selection where the sensing function (SF) maintains a node list of candidate sensing nodes and dynamically selects appropriate nodes based on current channel conditions, node capabilities, and sensing task requirements. This dynamic adaptation ensures sensing service continuity while managing system complexity through structured selection criteria and state tracking mechanisms.
Solution Approach 2:
The patent employs feedback mechanisms where sensing nodes report their states and capabilities to the sensing function, which then updates the node list accordingly. The SF receives feedback about node availability, channel conditions, and sensing performance, using this information to make informed decisions about node selection and reconfiguration, thereby maintaining service continuity through adaptive management.
2Measurement precision
If multiple sensing nodes are managed and switched based on channel conditions, then sensing performance is optimized, but information loss increases
Solution Approach 1:
The patent implements preliminary action by having sensing nodes proactively report their capabilities, states, and availability information to the sensing function before being selected for sensing tasks. The SF maintains an updated node list with pre-collected information about each candidate node, reducing the need for real-time information exchange during node switching and minimizing information loss during transitions.
Data Source
AI summary
Various solutions for sensing service continuity in integrated sensing and communications (ISAC) system are described. An apparatus (e.g., a sensing function (SF)) may select one or more sensing nodes to generate a node list. The apparatus may transmit a configuration of a sensing task to the one or more sensing nodes. The apparatus may receive one or more sensing results of the sensing task from the one or more sensing nodes. The apparatus may update the node list based on the one or more sensing results.