Time-Series Wireless Sounding Signals for Efficient PHY/MAC Reporting
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Solution Overview
Problem
Existing wireless sensing technologies lack an efficient and effective method for wireless sensing measurement and reporting, particularly in environments with rich-scattering conditions, as standardization efforts are incomplete.
Innovation Solution
A system and method for wireless sensing that involves transmitting a time series of wireless sounding signals based on a wireless protocol, performing sensing measurements, and reporting these results through the physical and medium access control layers to higher layers for task execution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless sensing measurements are performed using existing wireless protocols, then the system can leverage existing infrastructure for sensing, but the measurement and reporting method is not yet standardized and efficient
Solution Approach 1:
The patent applies universality by enabling wireless protocols (specifically Wi-Fi) to serve dual purposes: traditional data communication and wireless sensing. The existing wireless infrastructure is made multi-functional, allowing it to perform both communication and sensing operations without requiring separate dedicated sensing systems. This resolves the contradiction by maintaining adaptability to existing protocols while improving measurement efficiency through standardized sensing procedures within those protocols.
2Productivity
If wireless sensing is implemented in rich-scattering environments, then more multipaths and virtual antennas are available, but the standardization regarding measurement and reporting details is incomplete
Solution Approach 1:
The patent applies segmentation by dividing the wireless sensing process into distinct standardized components: signal transmission, channel state information measurement, sensing measurement execution, and structured reporting. This segmentation allows each component to be standardized independently, making the overall system manageable and implementable in rich-scattering environments with multiple multipaths and virtual antennas.
3Measurement precision
If wireless sounding signals are transmitted as time series, then sensing measurements can be performed, but the reporting mechanism to higher layers needs to be efficient
Solution Approach 1:
The patent implements feedback by establishing a structured reporting mechanism where sensing measurement results are efficiently transmitted from the physical/MAC layers to higher layers. This feedback loop enables timely delivery of measurement data, allowing the system to maintain measurement precision while minimizing reporting delays through optimized data transmission protocols.
Data Source
AI summary
Methods, apparatus and systems for wireless sensing are described. In one example, a described system in a wireless data communication network comprises: a transmitter configured to transmit a time series of at least one wireless sounding signal (WSS) based on a standard wireless network protocol associated with the wireless data communication network, and a receiver. The wireless data communication network comprises a physical (PHY) layer, a medium access control (MAC) layer, and at least one higher layer. The receiver is configured to: receive the time series of at least one WSS (TSWSS) based on the standard wireless network protocol through a wireless channel of a venue, and perform a plurality of wireless sensing measurements based on the received TSWSS to obtain sensing measurement results based on the standard wireless network protocol. The PHY layer or the MAC layer of the receiver provides the sensing measurement results locally to the at least one higher layer of the receiver based on the standard wireless network protocol. The sensing measurement results are available to the at least one higher layer of the receiver for performing a sensing-based task based on the sensing measurement results.