Integrated Sensing Frame Allocation for Spectral-Efficient Communication
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Solution Overview
Problem
Existing communication systems face challenges in meeting the requirements of both sensing and communication simultaneously while minimizing resource overheads, leading to inefficiencies in spectral usage.
Innovation Solution
A method and apparatus that configure a frame with alternating time periods for communication and sensing signals, allowing flexible allocation of resources to meet both demands without interfering with each other, thereby optimizing spectral efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If time-division duplexing mode is used to separate communication and sensing functions into different time slots, then interference between communication and sensing is avoided, but spectral efficiency deteriorates due to dedicated sensing time slots occupying spectrum resources
Solution Approach 1:
The patent merges communication and sensing functions into a unified frame structure where sensing signals are embedded within communication frames. The sensing time periods are integrated into the existing communication frame rather than being completely separate, allowing both functions to share the same spectrum resources while maintaining communication reliability through careful signal design and interference management.
Solution Approach 2:
The patent makes the frame structure multi-functional by enabling it to serve both communication and sensing purposes simultaneously. The same frame carries both communication data and sensing information, with different time periods within the frame allocated to different functions based on dynamic requirements, thus improving spectral efficiency while maintaining both functionalities.
2Measurement precision
If sensing-oriented waveform is used for integrated sensing and communication, then sensing capability is improved, but communication capability deteriorates
Solution Approach 1:
The patent segments the frame into multiple time periods with different functions. Some time periods use sensing-oriented waveforms to enhance sensing capability, while other time periods use communication-oriented waveforms to maintain communication capability. This segmentation allows the system to optimize for sensing in specific intervals without permanently sacrificing communication performance.
Solution Approach 2:
The patent implements dynamic waveform selection where the system can adaptively adjust the waveform type (sensing-oriented or communication-oriented) based on real-time requirements. The frame structure allows flexible configuration of different time periods with appropriate waveforms, enabling the system to dynamically balance between sensing and communication capabilities rather than being fixed to one waveform type.
3Productivity
If communication-oriented waveform is used for integrated sensing and communication, then communication capability is improved, but sensing capability deteriorates
Solution Approach 1:
The patent divides the frame into multiple time periods where communication-oriented waveforms are used in some periods to maintain strong communication capability, while sensing-oriented waveforms are used in other periods to ensure adequate sensing capability. This segmentation allows the system to achieve both communication and sensing requirements through temporal division rather than compromising either function.
4Reliability
If dedicated sensing time slots are allocated separately from communication frames, then sensing operations do not interfere with communication, but resource overhead increases and spectrum resources are wasted
Solution Approach 1:
The patent combines sensing time slots with communication frames into a unified structure. Instead of allocating completely separate time slots for sensing, the sensing functions are integrated within the existing communication frame structure, allowing both functions to share the same spectrum resources and reducing overall resource overhead while maintaining communication stability through careful signal design.
Solution Approach 2:
The patent creates a multi-functional frame structure that serves both communication and sensing purposes. The same frame carries both communication data and sensing information, eliminating the need for dedicated sensing-only time slots and reducing resource overhead. The frame is designed to be universally applicable to both functions simultaneously.
Data Source
AI summary
A method and an apparatus for sensing and communication is provided. The method includes: a first device obtains a sensing parameter including a physical feature of a sensing target; configures a first frame based on the sensing parameter, and performs sensing on the first frame. The first frame includes M first time periods and N second time periods, both M and N are integers greater than or equal to 0, without being equal to 0 at the same time. The first device sends or receives a waveform of a communication signal during the first time period, and sends or receives a waveform of a sensing signal during the second time period. According to this application, spectral efficiency can be improved as sensing is performed without affecting communication thereby minimizing communication overheads, and sensing and communication occupy a same spectrum resource thereby meeting the requirements of sensing and communication.