Collaborative Node Sensing With Time-Slot Interference Mitigation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Sensing signals from multiple nodes in cellular networks interfere with each other, leading to degraded network collaborative sensing performance.
Innovation Solution
A network collaborative sensing method that involves acquiring and sharing sensing information among nodes to improve precision and breadth of sensing, using techniques like echo signals and coordinated signal transmission to mitigate interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple sensing nodes transmit sensing signals simultaneously, then the sensing coverage and capability are improved, but the sensing signals interfere with each other causing performance degradation
Solution Approach 1:
The patent implements periodic time-slot allocation where different sensing nodes transmit signals in alternating time intervals rather than simultaneously. The network device coordinates multiple nodes to use different time slots, creating a periodic transmission pattern that eliminates signal interference while maintaining expanded sensing coverage through coordinated multi-node operation.
Solution Approach 2:
The patent segments the sensing operation into distinct time slots for different nodes. By dividing the sensing process temporally, each node transmits in its allocated slot without overlapping with others, thus preventing interference while collectively achieving broader coverage through the coordinated segmentation of sensing tasks across multiple nodes.
2Adaptability or versatility
If more sensing nodes are deployed, then the sensing capability is enhanced, but the interference among nodes increases
Solution Approach 1:
The patent applies periodic time-slot allocation to coordinate transmissions from multiple sensing nodes. Each node is assigned specific time intervals for signal transmission, creating a rhythmic, non-overlapping pattern that allows more nodes to operate simultaneously without mutual interference, thereby enhancing overall sensing capability while controlling interference through temporal periodicity.
Solution Approach 2:
The network device serves as an intermediary that coordinates and manages the sensing signal transmissions from multiple nodes. It allocates time slots and controls the transmission schedule, acting as a mediator that enables multiple nodes to operate together without direct interference by imposing structured temporal separation through centralized coordination.
3Measurement precision
If sensing signals are transmitted continuously, then the sensing precision is improved, but the interference and energy consumption increase
Solution Approach 1:
The patent implements periodic transmission where sensing signals are sent in scheduled time slots rather than continuously. This periodic approach maintains sensing precision by ensuring regular, coordinated signal transmission from multiple nodes while significantly reducing energy consumption by keeping transmitters idle during non-allo cated periods, thus eliminating the need for continuous energy expenditure.
Solution Approach 2:
The patent uses partial action by transmitting sensing signals only during necessary time slots rather than continuously. Each node transmits partially (intermittently) according to its allocated schedule, which is sufficient to maintain sensing precision through coordinated observations while avoiding the excessive energy consumption that would result from continuous transmission by all nodes.
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
The present application provides a network collaborative sensing method applied to a first node. The method includes: acquiring (S101) first sensing information for a sensing target, and determining (S101) one second node in a plurality of second nodes based on the first sensing information; sending (S102) the first sensing information to the second node; acquiring (S103), from the second node, second sensing information for the sensing target, where the second sensing information is obtained by sensing the sensing target by the second node; and obtaining (S104) a sensing result based on the first sensing information and the second sensing information. The present disclosure further provides an electronic device and a computer-readable storage medium.