Multi-Link Wireless Sensing with Coordinated STA Session Setup
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Solution Overview
Problem
Existing wireless sensing technologies for multi-link devices are inefficient due to unnecessary duplication of overhead and resource waste when each link performs sensing independently, failing to fully exploit the potential of coordinated sensing across affiliated stations.
Innovation Solution
Coordinate sensing session setup and execution across multiple links of a multi-link device by involving at least two stations to agree on operational attributes and perform sensing measurements simultaneously over multiple wireless links, reducing messaging overhead and optimizing resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If each link performs sensing independently, then sensing can be performed on multiple links, but messaging overhead is duplicated and resources are wasted
Solution Approach 1:
The patent merges the sensing session setup across multiple links by having one STA perform the setup and then notifying other STAs to participate. Instead of each STA independently setting up sensing sessions, the system combines the setup process into a single coordinated action, reducing redundant messaging overhead while maintaining multi-link sensing capability
Solution Approach 2:
The patent implements multi-functionality where STAs can serve multiple purposes - they participate in sensing measurements while also being involved in coordinating the sensing session setup across links. The sensing mechanism is designed to work universally across all links of an MLD, allowing any STA to perform sensing measurements during a coordinated session
2Productivity
If each link performs sensing independently, then sensing coverage is expanded, but resource duplication occurs
Solution Approach 1:
The patent combines sensing resources across multiple links by establishing a single sensing session that involves multiple STAs. Instead of each link independently allocating and managing sensing resources, the system merges resource management into a coordinated session where bandwidth, processing capacity, and other resources are shared efficiently across all participating links
3Loss of information
If coordinated sensing is implemented, then messaging overhead is reduced, but coordination complexity increases
Solution Approach 1:
The patent applies preliminary action by having STAs exchange operational attributes and establish sensing session parameters before the actual sensing measurements begin. The coordination framework is set up in advance through setup messages that define roles, bandwidth allocation, and measurement parameters, so that when sensing occurs, the complexity is already managed through pre-established protocols
Solution Approach 2:
The patent implements feedback mechanisms where STAs send sensing measurement reports back to the initiator. This feedback loop allows the system to manage coordination complexity by using measurement results to adjust future sensing sessions, and the feedback messages themselves carry operational attributes that simplify the coordination protocol for subsequent sessions
Data Source
AI summary
A method of performing sensing measurements during a sensing session between a first multi-link device and a second multi-link device in a Wireless Communication Network, wherein said first multi-link device comprises two stations, STAs, (STA11, STA12), wherein said second multi-link device comprises two STAs (STA21, STA22), wherein said STAs (STA11, STA12, STA21, STA22) are arranged to communicate using independent wireless links such that said first STAs of said two multi-link devices are able to communicate over a first wireless link and such that said second STAs of said two multi-link devices are able to communicate over a second wireless link, said method comprising the steps of determining, by said first multi-link device, in a sensing session setup, that said second STA of said first multi-link device is to be involved in performing sensing measurement during a sensing session, which determining is performed by exchanging operational attributes using said first STA of said first multi-link device over said first wireless link, performing, by said first multi-link device, during a sensing session, wireless sensing using said second STA of said first multi-link device over said second wireless link, thereby obtaining sensing measurements.