NAN Communication Apparatus Data Link Scheduling
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Solution Overview
Problem
In Neighbor Awareness Networking (NAN) systems, existing technologies face challenges in promptly initiating service-based communications and efficiently managing data communication periods to avoid overlapping with other devices, leading to suboptimal power consumption and bandwidth usage.
Innovation Solution
A communication apparatus with a first communication unit for establishing a data link during a cyclic period, a second communication unit for maintaining the data link with other devices outside the cyclic period, and an announcement unit to notify the network of the communication schedule, allowing for efficient data link management and reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If NAN devices separately establish new synchronization for Post NAN communication, then service-based communication can be initiated, but the communication start time is delayed
Solution Approach 1:
The patent applies preliminary action by establishing the data link during the Discovery Window (DW) period before Post NAN communication is needed. The communication apparatus uses the first communication unit to set up the data link in advance during the synchronized NAN period, so that when service-based communication is required, the link is already established and ready for immediate use, eliminating the delay of establishing synchronization from scratch.
2Use of energy by moving object
If NAN devices perform data communication during overlapped periods, then power consumption is reduced, but bandwidth availability decreases
Solution Approach 1:
The patent applies dynamics by making the data communication period configurable and adaptable. The communication apparatus can dynamically adjust whether to overlap data communication periods with other NAN devices based on application requirements. The system supports both overlapping periods (for power saving) and non-overlapping periods (for bandwidth availability), allowing flexible adaptation to different service needs.
3Stability of the object's composition
If NAN devices establish data links during cyclic Discovery Window periods, then synchronization is maintained, but communication flexibility is reduced
Solution Approach 1:
The patent applies segmentation by dividing communication into two distinct parts: the Discovery Window period for synchronization and device discovery, and a separate data communication period for actual service communication. This segmentation allows the NAN cluster to maintain stable synchronization during DW while providing flexibility in scheduling data communication at different times, either overlapping or non-overlapping with DW, depending on application requirements.
Data Source
AI summary
A communication for executing a service with another communication apparatus that can execute a desired service is efficiently executed. A communication apparatus performs a communication for establishing a data link during a cyclic first period in a network, performs, in accordance with the data link established with another communication apparatus within the network, a communication based on the data link with the other communication apparatus by using the established data link during a second period other than the first period, and announces the second period within the network.