Integrated ISAC Frame Design for Signal Interference Reduction
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Solution Overview
Problem
Current ISAC systems face interference and high resource overheads due to independent design of communication and sensing functions, leading to inefficient use of hardware and spectrum resources.
Innovation Solution
A transmission method and apparatus that integrates communication and sensing signals by including a communication frame with a portion for transmitting a target signal and a portion for receiving an echo sensing signal, allowing for simultaneous processing and reducing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If communication and sensing functions are designed independently, then each function can be optimized separately, but interference between signals occurs and resource overhead increases
Solution Approach 1:
The patent combines communication signals and sensing signals into a single composite signal that is transmitted through the same hardware and frequency spectrum. The communication device transmits both types of signals simultaneously using unified hardware resources, thereby reducing resource overhead while maintaining signal quality through coordinated signal design
Solution Approach 2:
The patent designs the communication device to perform multiple functions using the same hardware infrastructure. The same transmitter and receiver are used for both communication signal transmission and sensing signal transmission, making the system multi-functional and reducing the need for separate dedicated hardware for each function
2Device complexity
If communication and sensing signals work independently, then signal processing is simplified, but hardware resources are not efficiently shared
Solution Approach 1:
The patent merges communication and sensing signal processing into a unified framework where both signals are processed through the same hardware chain. The device processes composite signals that contain both communication and sensing components, improving resource utilization while managing complexity through integrated processing algorithms
Solution Approach 2:
The patent segments the composite signal into communication components and sensing components during processing. Although transmitted together, the signals are separated and processed independently at the receiver end, allowing simplified processing for each function while maintaining efficient hardware sharing during transmission
3Reliability
If separate hardware is used for communication and sensing, then each function operates independently without interference, but resource overhead and system complexity increase
Solution Approach 1:
The patent makes the communication device universal by enabling it to perform both communication and sensing functions using the same hardware configuration. The transmitter, receiver, and processing units are designed to handle both types of signals, reducing hardware complexity while maintaining functional independence through software-controlled signal separation
Data Source
AI summary
A transmission method includes: a communication device determines a communication frame for transmitting a target signal. The communication frame includes a first portion for transmitting a target signal and a second portion for receiving a sensing signal, the sensing signal is an echo signal for the target signal. The communication device transmits the target signal within the first portion of the communication frame. And the communication device receive the sensing signal within the second portion of the communication frame.