Base Station Radar Sensing Slots for Timely Environmental Signalling
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Solution Overview
Problem
Existing communication and sensing systems face challenges in efficiently balancing resources between communication signals and radar signals, particularly in providing timely environmental information to nearby objects using base stations.
Innovation Solution
Base stations operate in reactive or proactive modes to perform radar sensing, obtaining and transmitting environmental information to nearby objects by scheduling radar sensing slots within communication frames, prioritizing based on reaction times, and adjusting sensing intervals according to object locations and speeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If base stations perform radar sensing to obtain environmental information, then sensing accuracy and environmental awareness are improved, but resource allocation efficiency deteriorates due to the need to balance communication and sensing signals
Solution Approach 1:
The patent segments the base station's operational resources by introducing dedicated sensing slots within communication frames. This segmentation allows separate allocation of time-frequency resources for sensing operations, enabling independent optimization of sensing accuracy without compromising overall resource allocation efficiency. The sensing slots are specifically designed to carry radar signals while communication slots handle data transmission.
Solution Approach 2:
The base station is designed with multi-functionality to simultaneously perform both communication and sensing operations. By integrating radar transceiver capabilities into the existing base station infrastructure, the system can handle both communication signals and sensing signals through a single platform, improving resource utilization while maintaining sensing accuracy.
2Loss of time
If the system transmits environmental information to approaching objects, then information timeliness is improved, but communication bandwidth consumption increases
Solution Approach 1:
The patent applies local quality by providing environmental information selectively to specific approaching objects based on their location, speed, and relevance to the region of interest. Instead of broadcasting information to all objects uniformly, the system tailors information transmission to individual objects that require it, reducing overall bandwidth consumption while maintaining timeliness for those who need the information.
Solution Approach 2:
The system performs preliminary sensing and prepares environmental information in advance during sensing slots before objects approach critical regions. This preliminary action allows the information to be ready for immediate transmission, improving timeliness without requiring continuous high-bandwidth communication channels.
3Adaptability or versatility
If radar sensing slots are scheduled within communication frames, then sensing and communication coordination is improved, but system complexity increases
Solution Approach 1:
The patent merges sensing operations with communication frames by integrating radar sensing slots within the existing communication frame structure. This merging allows the system to coordinate sensing and communication activities through a unified frame scheduling mechanism, improving adaptability while managing complexity through shared resource allocation frameworks rather than separate independent systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables timely and efficient provision of environmental information to nearby objects, optimizing resource utilization and ensuring accurate sensing and communication without disrupting normal operations.
Implementation Method 1
radar sensing of a region of interest
Implementation Method 2
using frequency-modulated continuous wave (FMCW) radar technology
Implementation Method 3
transmits the environmental information to a communication system of the approaching object
Data Source
AI summary
A radar system includes a transmitter, a receiver, a processor, and a non-transitory computer-readable medium storing machine instructions. The machine instructions cause the processor to obtain an indication of an approaching object, perform radar sensing of a region of interest to obtain environmental information, and transmit the environmental information for the region of interest to a communication system of the approaching object. In some implementations, the processor obtains the indication of the approaching object by receiving, from the communication system of the approaching object, a request for the environmental information for the region of interest. In some implementations, the processor obtains the indication of the approaching object by determining a location of the approaching object relative to the region of interest, and the radar system transmits the environmental information in response to the location of the approaching object being within a threshold distance of the region of interest.