Shared-Slot Reference Signals for Joint Wireless Communication and Sensing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face inefficiencies in resource utilization due to separate slots for sensing and communication, with sensing reference signals not providing sufficient target sensing accuracy and communication reference signals not optimizing resource allocation.
Innovation Solution
The integration of sensing and communication systems through shared reference signals, allowing for joint resource allocation and demodulation using sensing reference signals for both sensing and communication, such as PDSCH signals, to enhance resource efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If separate slots are used for sensing and communication, then resource allocation is simplified, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent combines sensing and communication into shared slots, allowing both functions to operate simultaneously using the same time-frequency resources. This merging eliminates the need for separate sensing and communication slots, thereby improving resource utilization efficiency while maintaining manageable allocation complexity through unified reference signal design.
Solution Approach 2:
The patent creates multi-functional reference signals that serve both sensing and communication purposes within the same slot structure. These universal reference signals enable the system to perform both sensing measurements and communication demodulation without requiring dedicated separate resources, thus resolving the contradiction between allocation simplicity and resource efficiency.
2Adaptability or versatility
If sensing reference signals are used for demodulation, then communication functionality is enabled, but sensing accuracy deteriorates
Solution Approach 1:
The patent applies different processing and optimization strategies to different portions or aspects of the reference signal depending on the intended function. For sensing-critical regions, the signal is optimized for measurement precision, while for communication-critical regions, it is optimized for demodulation performance, allowing both functions to coexist without mutual degradation.
Solution Approach 2:
The patent implements dynamic resource allocation and signal processing that adapts to the specific requirements of sensing versus communication tasks. The system can dynamically adjust reference signal parameters, processing methods, and resource distribution based on whether sensing accuracy or communication demodulation is the priority for a given slot or signal instance.
3Productivity
If communication reference signals are used for sensing, then resource allocation is optimized for communication, but sensing performance deteriorates
Solution Approach 1:
The patent segments the reference signal structure into distinct functional components or regions, with certain portions optimized for communication resource allocation efficiency and other portions optimized for sensing performance. This segmentation allows each part of the reference signal to fulfill its specific function effectively without compromising the other.
Data Source
AI summary
Disclosed are systems, apparatuses, processes, and computer-readable media for wireless communications. For example, an example of a process includes receiving a signal comprising a slot including at least one shared signal resource. The process further includes determining whether the slot is allocated for sensing and communications or is allocated for communications. The process further includes determining whether to demodulate the at least one shared signal resource using at least one sensing reference signal (RS) resource or at least one communication RS based whether the slot is allocated for sensing and communications or is allocated for communications.