Wi-Fi Peer Synchronization Filters for Low-Latency Cluster Merging
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Solution Overview
Problem
Existing wireless communication systems experience delays and glitches in low-latency applications when clusters merge due to misalignment of synchronization domains, and are susceptible to synchronization disruptions from denial of service attacks.
Innovation Solution
Implementing restricted peer synchronization protocols that allow devices to selectively synchronize based on service, group, and device attributes, using Bloom Filters and security-enhanced elements to ensure alignment and prevent unauthorized synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If devices synchronize with all discovered clusters, then synchronization coverage is improved, but delays and glitches occur due to misalignment of synchronization domains
Solution Approach 1:
The patent segments the synchronization process by introducing restricted peer synchronization that divides devices into different synchronization domains. Devices only synchronize with peers within the same service, group, or device attribute domain, preventing cross-domain synchronization conflicts while maintaining comprehensive coverage within each domain.
Solution Approach 2:
The patent applies local quality by making synchronization attributes (service, group, device) specific to each peer relationship. Instead of global synchronization, each device maintains localized synchronization attributes that apply only to relevant peers, ensuring proper alignment without interference from other domains.
2Adaptability or versatility
If devices synchronize with any discovered peer, then network connectivity is improved, but security vulnerabilities increase due to unauthorized synchronization
Solution Approach 1:
The patent implements preliminary action by establishing security attributes (service, group, device identifiers) before synchronization occurs. Devices evaluate these pre-established attributes to determine whether synchronization is permitted, preventing unauthorized synchronization attempts before they can cause security issues.
Solution Approach 2:
The patent introduces synchronization attributes as an intermediary layer between devices. These attributes act as mediators that must match for synchronization to occur, providing a security mechanism that allows legitimate connections while blocking unauthorized ones without requiring direct device authentication.
3Reliability
If restricted synchronization filters are applied, then security is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by using the same synchronization attribute mechanism (service, group, device identifiers) for multiple purposes: security filtering, peer identification, and synchronization domain definition. This single multi-functional approach reduces overall system complexity compared to implementing separate mechanisms for each function.
Data Source
AI summary
Embodiments herein may restrict peer synchronization for Wi-Fi peer-to-peer communication when a low-latency data link is established. A first wireless device in a first cluster may operate a latency-sensitive application. The first wireless device may receive a beacon frame from a transmitter (TX) wireless device in a second cluster. The beacon frame may include a TX restricted synchronization filter (RSF) attribute. Based on compatibility of the TX RSF attribute being with the first wireless device's own RX RSF, the first wireless device may adopt or decline to adopt a clock of the TX wireless device and merge with the second cluster.