Wireless Access Point Latency Reduction During Handover
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Solution Overview
Problem
Current communication systems experience latency and data packet loss during wireless connectivity changes, such as handovers between access points, which can lead to delayed or lost data transmission.
Innovation Solution
The method involves automatically detecting changes in wireless connectivity and establishing a temporary data tunnel and data flow path between wireless access points, with a registration request sent to a network element to facilitate seamless data forwarding before the handover is complete, thereby reducing latency and minimizing data loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional handover procedures are used during wireless connectivity changes, then the system maintains simplicity in implementation, but latency increases and data packet loss occurs during the transition
Solution Approach 1:
The system establishes a temporary data tunnel and data flow path before the handover is actually completed. The access point detects connectivity change indicia and proactively sets up the tunnel to a mobile IP agent and subsequent data flow path to the target access point, ensuring data transmission continuity during the transition period.
Solution Approach 2:
A mobile IP agent acts as an intermediary node between the source and target access points. The temporary data tunnel is established through this intermediary, allowing data to be forwarded seamlessly during the handover process without requiring direct connection between source and target access points.
2Productivity
If data forwarding is established after handover completion, then the system maintains simple protocol sequencing, but data packets are lost or delayed during the connectivity transition
Solution Approach 1:
The system performs data path establishment in advance by detecting connectivity change indicia and creating the temporary data tunnel before the handover completes. This preliminary action ensures that data forwarding is already in place when needed, preventing packet loss without requiring complex post-handover protocol sequences.
Solution Approach 2:
The access point automatically detects connectivity changes and autonomously establishes the temporary data tunnel and data flow paths without requiring complex coordination or additional signaling protocols between multiple network elements, simplifying the overall handover process.
3Loss of time
If the system waits for handover completion before establishing data paths, then the system maintains straightforward processing sequences, but latency increases and data transmission is interrupted
Solution Approach 1:
The system establishes the temporary data tunnel and data flow path in advance by detecting connectivity change indicia, rather than waiting for handover completion. This preliminary establishment of data paths eliminates transmission interruptions and reduces latency while maintaining relatively simple processing through automated detection and setup.
Data Source
AI summary
A wireless access point (102) detects an indicia of a change in wireless connectivity of a mobile station (101) with respect to itself and another wireless access point (103). The wireless access point then automatically effects at least one of establishing a communication between itself and the second wireless access point regarding the change in wireless connectivity and/or establishing a temporary data tunnel as between itself and the second wireless access point. These network elements can also act to automatically establish a data flow path for the mobile station as between the second wireless access point and a network element (such as a mobility management agent (105)) that is external to the common subnet. In a preferred approach this comprises, at least in part, automatically sending a registration request to the network element other than in response to a specific request from the mobile station to send such a registration request.