Cooperative Radar Power Control for V2X Interference Adaptation
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Solution Overview
Problem
Conventional radar detection systems in vehicles lack flexibility to adapt to diverse and variable driving environments, leading to suboptimal performance.
Innovation Solution
A method and apparatus that enable a radar detection apparatus to adjust transmit power and time-frequency resources based on indication information from processing or communications systems, allowing it to adapt to changing driving conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a radar detection apparatus uses a fixed transmit power, then the device complexity is reduced and operation is simplified, but the adaptability to variable driving environments deteriorates
Solution Approach 1:
The radar detection apparatus receives indication information from external apparatuses (processing apparatus or communications apparatus) that provides feedback about the driving environment. This feedback mechanism enables the radar to adjust its transmit power according to actual conditions without requiring complex internal sensing systems, thus improving adaptability while keeping device complexity manageable.
Solution Approach 2:
The patent introduces an intermediary indication information mechanism that mediates between the external environment and the radar detection apparatus. Instead of directly sensing and processing environmental parameters, the radar receives processed indication information from external apparatuses, simplifying its own structure while maintaining adaptability to variable driving environments.
2Adaptability or versatility
If a radar detection apparatus uses fixed transmit power, then the system is simpler to operate, but the flexibility to adjust to different driving conditions is reduced
Solution Approach 1:
The radar detection apparatus automatically adjusts its transmit power based on received indication information without requiring manual intervention. The system serves itself by autonomously adapting to driving conditions through the indication information mechanism, maintaining ease of operation while improving flexibility.
Solution Approach 2:
The automatic adjustment mechanism uses feedback from indication information to autonomously optimize transmit power. This feedback-driven automation maintains ease of operation by eliminating manual power management while achieving flexible adaptation to different driving conditions.
3Reliability
If the radar transmission power is increased to improve detection performance, then the detection capability is enhanced, but the interference to other devices increases
Solution Approach 1:
The radar detection apparatus dynamically adjusts its transmit power based on received indication information rather than using a fixed high power level. This dynamic adjustment allows the system to maintain high detection performance when needed while reducing interference in situations where it is not required, balancing reliability and harmful effects.
Solution Approach 2:
The patent changes the transmit power parameter dynamically based on indication information from external apparatuses. By adjusting this key parameter according to actual driving conditions, the system achieves high detection performance when necessary while minimizing interference to other devices when lower power suffices.
Data Source
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AI summary
This application provides an information transmission method and apparatus, relates to interference processing of a cooperative radar, and is applicable to internet of vehicles scenarios, such as a vehicle-to-everything V2X scenario, a long term evolution-vehicle LTE-V scenario, and a vehicle-to-vehicle V2V scenario. Therefore, information related to a transmit power can be transmitted through an interface of a radar detection apparatus, and a capability of an automated driving system or an advanced driver assistant system ADAS is improved, to adapt to a variable driving environment. The information transmission method includes: A first detection apparatus receives indication information, where the indication information is used to indicate the first detection apparatus to determine a first transmit power used for transmitting a radar signal; and the first detection apparatus determines the first transmit power based on the indication information.