WLAN Sensing Measurement Templates for Lower Channel Overhead
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Solution Overview
Problem
The occupation of wireless channel resources increases linearly with the number of measurement responders in wireless sensing measurement processes, leading to inefficiencies in wireless sensing measurements.
Innovation Solution
A measurement method that uses a measurement template to indicate how multiple measurement response apparatuses receive and send measurement messages, reducing the amount of information transmitted and optimizing the measurement process to minimize resource occupation and improve efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If individual measurement configurations are used for each measurement response apparatus, then measurement precision can be maintained, but wireless channel resource occupation increases linearly with the number of measurement responders
Solution Approach 1:
The patent merges individual measurement configurations into a single measurement template that can be reused across multiple measurement response apparatuses. The measurement initiation apparatus sends one measurement template to multiple responders, consolidating what would otherwise require separate configurations for each device, thereby reducing signaling overhead while maintaining measurement capability.
Solution Approach 2:
The measurement template is designed as a universal configuration that can serve multiple measurement response apparatuses simultaneously. A single template structure with fields for transmitter information, receiver information, and measurement parameters can be instantiated for multiple apparatuses without requiring separate template definitions, achieving multi-functionality from a single configuration object.
2Measurement precision
If detailed measurement templates are configured for each measurement response apparatus, then measurement accuracy is improved, but measurement overheads increase
Solution Approach 1:
The measurement template is prepared in advance with all necessary measurement parameters, transmitter information, and receiver information configured before the actual measurement process. This preliminary configuration allows the measurement initiation apparatus to simply trigger measurements using pre-configured templates rather than sending detailed instructions for each measurement event, reducing real-time signaling overhead.
Solution Approach 2:
The patent uses template copying where a single measurement template definition can be replicated and applied to multiple measurement response apparatuses. Instead of creating unique detailed configurations for each apparatus, the system copies the standardized template structure and populates it with specific apparatus identifiers, significantly reducing the total configuration data required.
3Loss of time
If measurement templates are reused with identity updates, then configuration time is reduced, but device complexity increases due to seed sequence management
Solution Approach 1:
The patent enables template reuse by introducing a seed sequence parameter that can be varied across different measurement instances. The measurement template structure includes fields that can be dynamically updated with new transmitter and receiver information based on the seed sequence, allowing the same template to be reused with different parameter values without requiring complete template reconfiguration.
Data Source
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AI summary
This application provides a measurement method and an apparatus, applied to wireless local area network systems supporting IEEE 802.11bf, supporting IEEE 802.11ax or other IEEE 802.11 series protocols. In the method, a measurement initiation apparatus determines a first measurement template, and sends a first trigger request message including a first template identifier of the first measurement template. The first measurement template indicates at least one first measurement response apparatus and at least one second measurement response apparatus, the first measurement response apparatus is configured to send a first measurement message, and the second measurement response apparatus is configured to receive the first measurement message. Therefore, a plurality of measurement response apparatuses are indicated in a sensing measurement process to perform measurement based on the first measurement template. This can reduce a quantity of signaling transmissions in measurement, and reduce occupation of wireless channel resources in the sensing measurement process.