Adaptive Frame Selection for Sensing-Communication Coexistence
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Solution Overview
Problem
Existing wireless communication systems lack standardized frame designs and transmission mechanisms to support diverse sensing applications and joint sensing and communication (JSC) applications, which require different performance and quality of service metrics, and are affected by changing channel and environment conditions.
Innovation Solution
A method for adaptive frame selection and transmission mechanism in wireless systems, where a scheduling device allocates resources based on the type of signal (communication or sensing) and environmental conditions, using machine learning to determine priority and adjust frame formats and transmission parameters for efficient coexistence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single standardized frame design is used for wireless communication, then device complexity is reduced and ease of operation is improved, but adaptability to diverse sensing applications and joint sensing and communication applications deteriorates
Solution Approach 1:
The patent implements dynamic frame format selection where the system adapts between different frame formats (first frame format for sensing, second frame format for communication, third frame format for joint sensing and communication) based on real-time application requirements and channel conditions. This dynamic adaptation enables the system to handle diverse sensing applications while maintaining manageable complexity through standardized adaptation mechanisms.
Solution Approach 2:
The patent changes frame structure parameters including bandwidth allocation, cyclic prefix length, and resource element configuration to optimize performance for different application types. By adjusting these parameters based on whether the application is sensing-oriented, communication-oriented, or joint sensing and communication, the system achieves versatility without requiring completely different frame designs for each application.
2Reliability
If frame formats are optimized for specific sensing applications, then sensing performance is improved, but device complexity and difficulty of operation increase
Solution Approach 1:
The patent creates a universal frame structure framework that can serve multiple functions: the first frame format supports sensing applications, the second frame format supports communication applications, and the third frame format supports joint sensing and communication applications. This multi-functional design allows a single standardized system to achieve optimized sensing performance across different applications without increasing operational complexity, as the adaptation is managed through standardized protocols.
3Measurement precision
If bandwidth is allocated for sensing signals, then sensing accuracy is improved, but communication throughput deteriorates due to overlapping bandwidth
Solution Approach 1:
The patent segments the available bandwidth into different resource allocations depending on the active application. When sensing applications are active, bandwidth is allocated according to the first frame format with appropriate sensing resource elements. When communication applications are active, bandwidth is allocated according to the second frame format optimized for communication throughput. For joint applications, the third frame format provides segmented allocation that balances both requirements, ensuring sensing accuracy is maintained while preserving communication throughput through structured resource division.
Solution Approach 2:
The system dynamically adjusts bandwidth allocation between sensing and communication based on real-time application requirements. The frame format selection and resource element configuration change dynamically to optimize the balance between sensing accuracy and communication throughput, allowing the system to achieve high sensing accuracy when needed while maintaining communication productivity during communication-intensive periods.
Data Source
AI summary
Some embodiments in the present disclosure relate to facilitating coexistence of communication applications and sensing applications in at least partially overlapping bandwidths. A sensing device, a joint sensing and communication device and/or a communication device are provided that transmit a request for transmission resources to a scheduling device in a communication format compliant with a communication standard. In response, the scheduling device allocates resources corresponding to a frame format compliant with a communication standard according to which the communication device operates, if the request was for a communication application or the scheduling device allocates resources corresponding to a frame format compliant with the communication standard or to a frame format suitable for a sensing application, if the request was for the sensing application. The selection of the frame format for the sensing application may further depend on the priority of the sensing application or further features of the application or environment or channel or the like. The wireless device which receives the allocation schedules the signal transmission accordingly and may provide feedback to the scheduling device for adaptive frame format selection.