Robust NAN Peer-to-Peer Connection Setup Without Group Owner
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing Wi-Fi Direct peer-to-peer communication schemes, such as those utilizing a Station (STA) Access-Point (AP) relationship, are not efficient and optimal in all scenarios, particularly in situations where a group owner's disconnection disrupts ongoing sessions like gaming or file sharing, leading to interruptions and the need for session reestablishment.
Innovation Solution
A Robust peer-to-peer networking scheme is introduced, allowing devices to establish direct connections without a group owner, using information exchanged during the discovery process, and enabling secure, uninterrupted sessions through mechanisms like Wi-Fi Simple Configuration (WSC) and Robust Security Network (RSN) protocols, allowing for flexible channel and time slot utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Wi-Fi Direct peer-to-peer communication uses STA/AP relationship with group owner, then devices can establish connection, but session is interrupted when group owner disconnects
Solution Approach 1:
The patent extracts the group owner dependency from the peer-to-peer connection model. Devices establish direct connections with each other without requiring a group owner, removing the single point of failure that causes session interruptions when the group owner disconnects.
Solution Approach 2:
The patent segments the peer-to-peer connection into independent device-to-device links rather than a centralized star topology. Each device maintains its own connection to peer devices, so disconnection of one device does not affect other connections in the network.
2Reliability
If robust peer-to-peer connection is established without group owner, then session continuity is maintained, but connection setup complexity increases
Solution Approach 1:
The patent performs preliminary actions during the connection setup phase by establishing multiple redundant peer connections before actual data transmission begins. This preliminary establishment of multiple paths ensures that if one connection fails, others are already in place to maintain session continuity.
Solution Approach 2:
The patent uses discovery frames and availability information as intermediaries to facilitate connection setup. These standardized protocols mediate the complex peer-to-peer connection establishment, reducing the perceived complexity for end devices while enabling robust connections.
3Productivity
If devices use discovery process information for direct connection, then connection efficiency improves, but channel coordination difficulty increases
Solution Approach 1:
The patent makes discovery frames serve multiple functions: they not only discover devices but also exchange availability information, channel preferences, and connection parameters. This multi-functionality reduces the need for separate coordination protocols, simplifying channel management while maintaining fast connection establishment.
Solution Approach 2:
The patent implements dynamic channel selection where devices can switch between channels based on availability information exchanged during discovery. This dynamic adaptation allows efficient connection establishment on suitable channels while providing mechanisms to coordinate channel usage to avoid conflicts.
Data Source
AI summary
Some demonstrative embodiments include apparatuses, systems and/or methods of Peer to Peer communication. For example, a first wireless device may include a radio to send a first Neighbor Awareness Network (NAN) Service discovery frame including a first Robust peer-to-peer attribute, and to receive from a second wireless device a second NAN Service discovery frame including a second Robust peer-to-peer attribute, the first peer-to-peer attribute including first availability information to indicate at least one first channel and one or more first time slots, the second peer-to-peer attribute including second availability information to indicate at least one second channel and one or more second time slots; and a controller to setup a Robust peer-to-peer connection with the second peer-to-peer device based on the first and second availability information.