Delegated P2P Channel Scheduling for Scalable WLAN Coordination
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Solution Overview
Problem
Conventional peer-to-peer scheduling in wireless local area networks is inefficient and does not scale well, particularly when a large number of devices are involved or significant communication occurs, and peer-to-peer devices are reluctant to relinquish control to infrastructure for spectrum management.
Innovation Solution
Delegating scheduling authority to peer-to-peer devices themselves, allowing them to perform distributed scheduling on allocated channels, with a peer-to-peer coordinator managing traffic characteristics and scheduling timeslots based on priority.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional centralized peer-to-peer scheduling is used, then infrastructure control is maintained, but scheduling efficiency deteriorates and computational burden increases when large numbers of devices are involved
Solution Approach 1:
The patent extracts the scheduling function from the centralized infrastructure (AP) and relocates it to the peer-to-peer devices themselves. Each STA performs distributed scheduling independently, removing the computational burden from the infrastructure while improving scheduling efficiency through localized decision-making.
Solution Approach 2:
The centralized scheduling function is segmented and distributed across multiple peer-to-peer devices. Instead of one central controller managing all P2P communications, each STA independently performs scheduling for its own P2P links, dividing the complex scheduling task into simpler local decisions.
2Productivity
If peer-to-peer devices use distributed scheduling, then scheduling efficiency improves and infrastructure burden is reduced, but coordination complexity increases
Solution Approach 1:
The patent implements dynamic distributed scheduling where STAs can adjust their scheduling decisions in real-time based on channel conditions, traffic requirements, and interactions with other P2P devices. This dynamic approach allows efficient adaptation to changing network conditions while maintaining relatively simple local scheduling logic.
3Object-affected harmful factors
If centralized scheduling is used, then coordination is simplified, but interference management becomes less effective in large-scale peer-to-peer networks
Solution Approach 1:
The patent applies local quality by having each STA optimize scheduling for its specific P2P link based on local channel conditions, traffic characteristics, and interference environment. This localized optimization allows each device to effectively manage interference for its own communications without requiring global coordination, thereby reducing harmful interference in large-scale networks while maintaining simple operation.
Data Source
AI summary
Techniques for delegated peer-to-peer scheduling are provided. A first peer-to-peer device determines one or more wireless channels allocated for peer-to-peer communication, and receives a request indicating a set of transmission characteristics from a second peer-to-peer device that uses the first peer-to-peer device as a communications proxy. The first peer-to-peer device schedules wireless resources of the one or more wireless channels to a plurality of peer-to-peer devices based at least in part on the set of transmission characteristics, and performs peer-to-peer communications with the second peer-to-peer device in accordance with the scheduled wireless resources.