Coordinated Sensing Poll Triggering for Timing Accuracy
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Solution Overview
Problem
Existing coordinated sensing measurement technologies face challenges in ensuring timely and coordinated execution of sensing measurement processes among multiple devices, particularly in millimeter-wave sensing systems, due to issues with signal timing and variable transmission durations.
Innovation Solution
The implementation of a poll triggering mode, where a sensing initiator triggers each group or individual sensing responders to execute stages of the sensing measurement process using frames such as sensing request, measurement poll, and report poll frames, thereby eliminating the need to determine timing based on ACK frames and ensuring coordinated sensing across multiple devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional ACK frame-based timing determination is used in coordinated sensing measurement, then devices can establish basic coordination, but timing accuracy deteriorates due to variable transmission durations and signal timing issues
Solution Approach 1:
The patent introduces a poll triggering frame as an intermediary mechanism to mediate the timing coordination between sensing initiator and sensing responders. This frame carries explicit timing indication information that acts as a reliable mediator to synchronize measurements, replacing the unreliable ACK frame-based timing determination while improving both timing accuracy and coordination reliability.
Solution Approach 2:
The patent changes the timing determination parameter from implicit ACK frame timing to explicit poll triggering frame timing indications. By introducing new timing parameters (target end time, target start time, duration) in the poll triggering frame, the system achieves more precise and reliable timing control for coordinated sensing measurements.
2Measurement precision
If poll triggering mode is implemented to improve timing accuracy, then measurement precision improves, but device complexity increases due to additional frame types and timing coordination mechanisms
Solution Approach 1:
The poll triggering frame serves multiple functions: it triggers sensing measurements, carries timing indication information, coordinates multiple sensing responders, and enables both sequential and parallel measurement modes. This multi-functionality reduces the need for separate specialized frames and mechanisms, thereby limiting the increase in system complexity while achieving improved timing accuracy.
Solution Approach 2:
The patent implements dynamic timing adjustment capabilities where the poll triggering frame can adaptively set different timing parameters (target end time, target start time, duration) based on measurement requirements. This dynamic approach allows the system to optimize timing for different scenarios without requiring complex static configuration mechanisms.
3Area of stationary object
If multiple sensing responders participate in coordinated sensing, then measurement coverage improves, but timing coordination becomes more difficult due to increased variable transmission durations
Solution Approach 1:
The patent segments the sensing measurement process into distinct phases controlled by poll triggering frames, allowing multiple sensing responders to be coordinated independently. Each responder receives individual timing indications in the poll triggering frame, enabling precise timing synchronization even as the number of participants increases and sensing coverage expands.
Data Source
AI summary
Provided is a method for coordinated sensing measurement. The method for coordinated sensing measurement is applicable to a sensing initiator and includes during a coordinated sensing measurement, triggering each group of or each of sensing responders that participate in the coordinated sensing measurement to execute all or a portion of stages in a sensing measurement process in a poll triggering mode.