NAN Data Cluster Transition Coordination
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Solution Overview
Problem
Existing wireless communication systems, particularly Wi-Fi networks, face challenges in efficiently coordinating direct communication between wireless stations without an intermediate access point, leading to inefficiencies in setup and coordination, especially during transitions between communication clusters.
Innovation Solution
The implementation of Neighbor Awareness Networking (NAN) systems, where wireless stations can form clusters and data clusters to facilitate direct communication and transition between them, using methods to synchronize and coordinate operations, thereby minimizing data interruptions and improving power efficiency and latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If wireless stations communicate directly without an intermediate access point, then power efficiency is improved and latency is reduced, but coordination complexity and setup time worsen
Solution Approach 1:
The system segments the coordination function by introducing a cluster master role that is assigned to one station within each cluster. This master station is responsible for managing cluster-specific operations including synchronization signal transmission and coordination with other clusters, thereby distributing the coordination complexity to a specific node rather than requiring all stations to handle full coordination protocols
Solution Approach 2:
The patent inverts the traditional infrastructure model by allowing wireless stations to initiate and manage direct peer-to-peer communication without relying on an access point. Instead of stations connecting through an AP, the system enables stations to form autonomous clusters that directly communicate, reversing the dependency relationship and eliminating the need for intermediate infrastructure
2Productivity
If wireless stations form clusters for direct communication, then communication efficiency is improved, but transition coordination between clusters becomes more complex
Solution Approach 1:
The system performs preliminary actions by establishing synchronization between cluster masters before actual data transmission begins. Cluster masters exchange synchronization signals in advance to align their communication schedules, and transition procedures are pre-coordinated by exchanging capability information and establishing handover parameters before stations need to switch clusters, thereby simplifying the actual transition execution
Solution Approach 2:
The cluster master acts as an intermediary between member stations and other clusters. During transitions, the cluster master manages the handover process by coordinating with the target cluster's master, shielding member stations from the complexity of inter-cluster negotiation and providing a simplified interface for cluster membership changes
3Reliability
If synchronization is maintained during cluster transitions, then data interruption is reduced, but processing overhead increases
Solution Approach 1:
The system implements periodic synchronization where cluster masters exchange synchronization signals at regular intervals rather than continuously. This periodic exchange maintains synchronization state while allowing stations to enter low-power modes between exchanges, reducing processing overhead while ensuring synchronization is refreshed before transitions occur
Data Source
AI summary
One or more wireless stations operate according to Neighbor Awareness Networking (NAN)—direct communication with neighboring wireless stations, e.g., direct communication between the wireless stations without utilizing an intermediate access point. In a NAN system, NAN devices may operate to establish a datapath and multiple NAN devices may operate with one another in the form of a NAN cluster to facilitate communications processes. Portions of the disclosure relate to systems and methods for one or more wireless device (e.g., NAN devices) to transition into a cluster (e.g., a NAN cluster). In particular, wireless devices, having established a datapath, may be further organized into a data cluster (e.g., a NAN data cluster) within a cluster, which may be usable to facilitate the transitioning of a group of connected wireless devices (e.g., data clusters) between clusters.