Multi-Link Wireless Sensing Sessions for mmWave Target Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless sensing technologies face challenges in efficiently detecting and tracking multiple targets in complex environments using wireless communication devices, particularly in high-frequency bands like mmWave, due to interference and limited data throughput.
Innovation Solution
Implementing a multi-link communication scheme with Enhanced Directional Multi-Gigabit (EDMG) STAs that utilize channel bonding mechanisms to enhance data rates and improve target detection capabilities in mmWave frequency bands, enabling simultaneous communication over multiple channels to increase data throughput and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If wireless sensing is implemented in mmWave frequency bands to improve detection capability, then target detection accuracy is improved, but interference increases and data throughput is limited
Solution Approach 1:
The patent divides the sensing operation into multiple links, where different links operate on different frequency channels. This segmentation allows the system to distribute sensing tasks across multiple independent communication paths, reducing interference on any single link while maintaining overall detection accuracy through aggregated data from all links.
2Measurement precision
If wireless sensing is implemented in mmWave frequency bands to improve detection capability, then target detection accuracy is improved, but data throughput is limited
Solution Approach 1:
The patent combines multiple communication links into a unified sensing system. By aggregating data from multiple links that operate simultaneously on different frequency channels, the system achieves both high data throughput (through parallel data streams) and high detection accuracy (through diversified sensing perspectives), effectively resolving the throughput limitation in mmWave bands.
3Productivity
If multi-link communication scheme is implemented to increase data throughput, then data throughput is improved, but device complexity increases
Solution Approach 1:
The patent designs the communication device to perform multiple functions through the same hardware infrastructure. The device can simultaneously handle communication and sensing tasks across multiple links using shared radio frequency components, signal processing units, and antenna arrays. This multi-functionality approach increases data throughput while minimizing the increase in device complexity by reusing existing components for multiple purposes.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
For example, a first STA may be configured to set link ID information in a link ID field to identify one or more first wireless communication links for a sensing measurement session; and to transmit a wireless sensing measurement frame over a second wireless communication link. For example, the wireless sensing measurement frame may include the link ID field, and one or more sensing measurement parameters to configure the sensing measurement session over the one or more first wireless communication links. For example, a second STA may be configured to process the link ID information; to process the wireless sensing measurement frame to identify the one or more sensing measurement parameters to configure the sensing measurement session over the one or more first wireless communication links; and to establish the sensing measurement session over a link of the one or more first wireless communication links.