RF Sensing Channel Report Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing RF sensing techniques in wireless communication systems face challenges in accurately detecting changes in the environment due to limitations in the information exchanged between transmitting and receiving devices, particularly in channel state information (CSI) and transmission/reception parameters.
Innovation Solution
The method involves a wireless communication device receiving a sounding dataset from a transmitting device, acquiring CSI based on the dataset, and selectively transmitting a channel report that includes CSI and sounding control information, such as sequence numbers, timing information, and transmission/reception parameters, to facilitate accurate RF sensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If detailed sounding control information and CSI are exchanged between transmitting and receiving devices, then RF sensing accuracy is improved, but communication overhead increases
Solution Approach 1:
The patent extracts only the essential sounding control information (sequence numbers, timing information, transmission/reception parameters) needed for RF sensing from the complete channel state information, separating critical sensing data from redundant communication data. This extraction reduces the quantity of information that needs to be exchanged while preserving the accuracy required for detecting environmental changes.
Solution Approach 2:
The patent implements selective transmission of channel reports based on whether environmental changes exceed a threshold. Instead of continuously exchanging all CSI data, the system transmits detailed reports only when necessary (when changes are significant), reducing overall communication overhead while maintaining sensing accuracy for meaningful events.
2Reliability
If channel reports are transmitted frequently to maintain accurate environmental detection, then sensing reliability is improved, but loss of time and energy increases
Solution Approach 1:
The patent implements periodic channel sounding at optimized intervals rather than continuous monitoring. By determining appropriate timing based on the environment's characteristics and the threshold-based reporting mechanism, the system achieves reliable detection of environmental changes while minimizing the time and resources spent on frequent channel estimation procedures.
3Measurement precision
If comprehensive transmission parameters and configuration information are included in channel reports, then detection precision of environmental changes is improved, but device complexity increases
Solution Approach 1:
The patent segments the channel report into distinct components: essential sounding control information (sequence numbers, timing), transmission parameters, and CSI data. This segmentation allows the receiving device to process different elements independently, reducing overall processing complexity while maintaining comprehensive detection capability for environmental changes.
Data Source
AI summary
This disclosure provides methods, devices and systems for radio frequency (RF) sensing in wireless communication systems. In some implementations, a transmitting device may transmit a sounding dataset, over a wireless channel, to a receiving device. The sounding dataset may include information carried in one or more training fields configured for channel estimation and sounding control information based, at least in part, on a configuration of the transmitting device. The receiving device may acquire channel state information (CSI) for the wireless channel based on the received sounding dataset and selectively generate a channel report for the wireless channel based, at least in part, on the CSI and the sounding control information. The channel report may indicate changes to the wireless channel which, in turn, may be used to sense objects in the vicinity of the transmitting device or the receiving device.