Segmented Wireless Action Frames for Connectionless Large-Data Transfer
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Solution Overview
Problem
Existing technologies face limitations in transmitting large-sized data due to the upper limit on the size of frames in wireless communication, necessitating improvements for efficient data transmission.
Innovation Solution
An information processing method that allows for transmitting and receiving large-sized data by dividing it into partial data segments using action frames, with the ability to request re-transmission of missing segments without establishing a wireless connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If data is transmitted using standard wireless frames, then transmission simplicity is maintained, but the data size is limited by frame upper bounds
Solution Approach 1:
The patent divides large-sized data into multiple smaller data segments, each fitting within standard wireless frame size limits. These segmented data pieces are transmitted separately using conventional action frames, allowing large data transmission without exceeding frame size constraints while maintaining protocol simplicity.
2Reliability
If connection establishment is required before data transmission, then communication reliability is improved, but transmission speed and efficiency are reduced
Solution Approach 1:
The patent performs preliminary actions by embedding device identification information and data description information in advance within action frames during the connectionless phase. This allows the receiving device to understand what data is being transmitted and how to process it, ensuring reliability without requiring full connection establishment before transmission begins.
Solution Approach 2:
The patent implements feedback mechanisms where receiving devices send acknowledgment frames to confirm successful reception of data segments. If data is lost or corrupted, the system can request retransmission of specific segments, ensuring reliable delivery without maintaining continuous connections throughout the transmission process.
Data Source
AI summary
An example information processing system includes a base apparatus and a subsidiary apparatus. The base apparatus transmits a beacon containing apparatus identification information for identifying the base apparatus, and data identification information for identifying data transmitted from the base apparatus. The subsidiary apparatus, when receiving the beacon, transmits an action request frame for requesting data to the base apparatus. The base apparatus, when receiving the action request frame, transmits a plurality of action response frames containing a plurality of pieces of partial data obtained by dividing the data to the subsidiary apparatus. The subsidiary apparatus, when there is any of the plurality of pieces of data that has not been received, transmits an action request frame for requesting re-transmission of the data that has not been received to the base apparatus.