Beam Management for Integrated Sensing and Communication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current beam management frameworks in wireless systems, particularly for 5G-Advanced and 6G, do not adequately support radar sensing capabilities, leading to challenges in determining suitable beams for transmission and reception.
Innovation Solution
The proposed solution involves a method for performing beam management specifically for sensing in integrated sensing and communication (ISAC) systems. This includes a device receiving sensing reference signals, performing beam measurements, and transmitting information reports to align sensing and communication beams effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the current beam management framework is used for sensing, then communication operations can proceed, but beam alignment for radar sensing cannot be achieved
Solution Approach 1:
The patent segments the beam management process into distinct sensing-specific procedures separate from communication procedures. It introduces dedicated sensing reference signals (RS) and independent beam measurement and reporting mechanisms for sensing, allowing sensing beam alignment to be independently optimized without being constrained by communication framework limitations.
Solution Approach 2:
The patent introduces sensing reference signals as intermediary elements that enable beam alignment for sensing. These specialized RS serve as mediators between the transmitting and receiving devices, allowing them to establish accurate spatial filters and beam directions specifically for radar sensing operations, independent of communication beam management.
2Productivity
If sensing and communication share the same frequency band and hardware, then spectrum efficiency improves, but beam management complexity increases
Solution Approach 1:
The patent merges sensing and communication operations at the physical layer by utilizing shared frequency bands and hardware resources. It combines sensing reference signals with communication reference signals in the same time-frequency resources, allowing both sensing and communication to operate simultaneously using the same spectrum and hardware infrastructure.
Solution Approach 2:
The patent creates a universal beam management framework that serves both sensing and communication functions. The same beam management procedures, reference signals, and measurement mechanisms are designed to support dual purposes, allowing the system to maintain simplified operations while achieving multi-functionality in both sensing accuracy and communication performance.
3Productivity
If beam management is optimized for communication, then communication performance improves, but sensing beam accuracy deteriorates
Solution Approach 1:
The patent applies local quality by creating sensing-specific beam management parameters and procedures that are locally optimized for sensing requirements. It introduces dedicated sensing reference signals with specific properties tailored for radar sensing applications, allowing accurate beam alignment and measurement for sensing while maintaining separate optimization from communication parameters.
Solution Approach 2:
The patent introduces dynamic beam management mechanisms that can adaptively adjust beam parameters based on whether the current operation requires sensing or communication optimization. The system can dynamically switch between sensing-optimized and communication-optimized beam configurations, allowing each function to receive appropriate beam accuracy when needed.
Data Source
AI summary
Methods and devices of a wireless system are provided. A first device of the wireless system receives a first set of sensing reference signals (RSs) over beams from a second device, performs first beam measurements based on the first set of sensing RSs, and transmits, to the second device, a first information report based on the beam measurements. The first information report includes a first type of sensing information. The first device also receives, from the second device, a second set of sensing RSs, performs second beam measurements based on the second set of sensing RSs, and transmits, to the second device, a second information report based on the second beam measurements. The second information report includes a second type of sensing information that is different from the first type of sensing information.