Wideband Sensing Reference Signal Staggered Pattern
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently performing wireless sensing operations using wideband reference signals due to complications in distributing resource elements across sub-bands, leading to interference and reduced frequency diversity.
Innovation Solution
The implementation of a wideband sensing reference signal configuration with a staggering pattern that distributes the signal in frequency and time within a sub-band or across sub-bands, defining relationships between comb size, length, and bandwidth to improve frequency diversity and enable the use of multiple component carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If resource elements are distributed across sub-bands for wideband sensing, then bandwidth utilization is improved, but interference increases and frequency diversity is reduced
Solution Approach 1:
The wideband sensing reference signal is segmented into multiple sub-bands, with each sub-band containing a portion of the resource elements. This segmentation allows the system to utilize wider bandwidth while managing interference through localized resource allocation in each sub-band, and the staggered distribution across sub-bands provides frequency diversity.
2Area of stationary object
If resource elements are distributed across sub-bands for wideband sensing, then bandwidth utilization is improved, but frequency diversity is reduced
Solution Approach 1:
The patent introduces a temporal dimension to the frequency distribution by staggering resource elements across different sub-bands in different time slots. This creates a time-frequency staggered pattern that actually enhances frequency diversity while utilizing wide bandwidth, converting the potential problem into a solution by adding the time dimension to the resource element distribution.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In son aspects, a wireless communication device may determine a configuration for a sensing reference signal to be transmitted by the wireless communication device, wherein the configuration is associated with a wideband structure; transmit the sensing reference signal in accordance with the configuration; and perform a wireless sensing operation based at least in part on receiving sensor information and based at least in part on the configuration. Numerous other aspects are provided.