NAN Ranging Configuration for Device Proximity
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Solution Overview
Problem
Existing wireless networks face challenges in enabling direct communication between mobile devices, particularly in scenarios where devices are out of range of a common base station, necessitating methods for efficient data exchange and ranging operations within device-to-device communication.
Innovation Solution
The implementation of Neighborhood Awareness Network (NAN) and Wi-Fi Aware techniques allows for direct communication between mobile devices using NAN Data Links, with ranging operations to determine device proximity, enabling efficient data service establishment and geo-fencing based on ranging configuration parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If direct communication between mobile devices is implemented without base station infrastructure, then device-to-device data exchange capability is improved, but network coverage and reliability deteriorate when devices are out of range of common base station
Solution Approach 1:
The patent introduces a base station as an intermediary entity that facilitates device-to-device communication through coordinated scheduling and resource allocation. The base station acts as a mediator that enables reliable D2D communication by managing uplink synchronization and resource coordination, thus resolving the contradiction between direct communication capability and network reliability.
2Measurement precision
If ranging operations are performed frequently to determine device proximity, then measurement precision is improved, but signaling overhead and energy consumption increase
Solution Approach 1:
The patent implements periodic ranging operations where devices perform proximity measurements at scheduled intervals rather than continuously. This periodic approach maintains measurement precision for geo-fencing applications while significantly reducing energy consumption and signaling overhead compared to continuous ranging.
Solution Approach 2:
The system dynamically adjusts ranging parameters such as measurement intervals and thresholds based on application requirements and device states. By changing these parameters adaptively, the system optimizes the balance between measurement precision and energy consumption for different operational scenarios.
3Adaptability or versatility
If multiple data services are established between initiator and responder STAs, then service versatility is improved, but device complexity and resource management burden increase
Solution Approach 1:
The patent implements a universal resource allocation framework where a single set of scheduling mechanisms and control procedures supports multiple data services between initiator and responder STAs. This multi-functional approach enables diverse services (e.g., different QoS requirements, data types) to be managed through unified procedures, reducing device complexity while maintaining service versatility.
Data Source
AI summary
Embodiments of a station (STA) and method for ranging in accordance with Neighborhood Awareness Network (NAN) communication are generally described herein. An initiator STA may determine, for a data service that is to be established between the initiator STA and a responder STA on a NAN data link, whether a ranging procedure is to be performed for the data service. As part of the ranging procedure, range measurements or fine timing may be determined. When the ranging procedure is to be performed for the data service, ranging configuration parameters may be included in data request messages, publish messages and other messages sent by the STAs 103. In some cases, the STAs 103 may refrain from exchanging separate messages for communication of ranging information.