Core Network Coordination for On-Demand Dynamic Area Sensing
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Solution Overview
Problem
Existing communication systems face challenges in efficiently utilizing sensing capabilities of network devices without impacting normal communication performance, particularly in scenarios like vehicle autopilot or assisted driving, where blind spots need to be scanned on demand.
Innovation Solution
A mechanism is introduced where a core network device receives a sensing request from a terminal device indicating an initial sensing area and its change tendency, instructs an access network device to sense a target area, and transmits a response based on the sensing result, allowing on-demand dynamic sensing of areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensing radar continuously scans the entire coverage scope, then sensing coverage and detection capability are improved, but system resource consumption and impact on communication performance increase
Solution Approach 1:
The patent implements on-demand sensing where the access network device selectively scans specific sensing areas (such as blind spots or areas with moving objects) rather than continuously scanning the entire coverage scope. This localized sensing approach maintains detection capability for critical areas while significantly reducing overall resource consumption.
Solution Approach 2:
The system employs periodic sensing requests from terminal devices and corresponding periodic scanning by the access network device only when needed. Instead of continuous scanning, the sensing operation is activated periodically based on actual demand, reducing energy consumption while maintaining necessary detection capabilities.
2Area of stationary object
If sensing radar scans the entire coverage scope, then sensing coverage area is improved, but the time required for sensing increases
Solution Approach 1:
The patent extracts and prioritizes only the necessary sensing areas (such as blind spots or areas with detected moving objects) from the entire coverage scope. By focusing sensing resources on these extracted critical areas rather than scanning the whole coverage, the system reduces sensing time while maintaining effective coverage of important regions.
Solution Approach 2:
The system performs partial sensing of the coverage area by selectively scanning only the necessary portions (such as 1/4 or 1/8 of the total coverage scope) based on terminal device requests and detected conditions. This partial action approach achieves adequate sensing coverage for critical areas without the time penalty of scanning the entire scope.
3Measurement precision
If the access network device allocates more resources for sensing, then sensing performance is improved, but communication performance deteriorates
Solution Approach 1:
The patent implements dynamic resource allocation where the access network device adjusts sensing resource allocation based on real-time conditions and terminal device requests. When sensing is needed, resources are dynamically allocated to achieve required sensing performance; when not needed, resources are released to maintain communication performance, creating a dynamic balance between the two functions.
Solution Approach 2:
The system changes operational parameters by activating sensing functions only when specific conditions are met (such as receiving a sensing request or detecting a moving object). This parameter change approach allows the system to achieve high sensing performance when needed while maintaining normal communication operation, avoiding the continuous resource allocation that would degrade communication performance.
Data Source
AI summary
Example embodiments of the present disclosure relate to sensing a dynamic area on request. In an example method, a core network device receives a sensing request from a terminal device. The sensing request indicates an initial sensing area and a change tendency of the initial sensing area. The core network device transmits a sensing instruction to an access network device. The sensing instruction instructs the access network device to sense a target sensing area determined based on the initial sensing area and the change tendency. The core network device receives a sensing result of the target sensing area from the access network device. The core network device transmits a sensing response to the terminal device. The sensing response is determined based on the sensing result. In this way, resource utilization efficiency of sensing of a network device is improved and impact on communication performance of the network device is reduced.