Relay Device Wireless Data Transfer Segmentation
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Solution Overview
Problem
In wireless communication systems, especially with IEEE 802.11, wireless terminals often face challenges in completing data downloads or uploads due to large file sizes, requiring connections to multiple access points, and caching mechanisms may not function effectively, leading to prolonged data transfer times as the terminal moves.
Innovation Solution
A relay device with access points that temporarily store information and decide whether to relay or request storage from other access points, allowing for efficient data transfer by dividing and sharing object information across multiple access points based on the terminal's movement and communication status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wireless terminal connects to multiple access points to download large files, then the data transfer completeness is improved, but the data transfer time increases
Solution Approach 1:
The access point proactively divides object information into multiple parts and stores them in advance in its own buffer or in the buffers of other access points before the wireless terminal needs to download the complete data. This preliminary distribution and storage action enables the terminal to retrieve all parts simultaneously or in rapid succession, avoiding the time penalty of sequential downloads across multiple access points.
Solution Approach 2:
The access point segments the large object information into multiple manageable parts and distributes these segments across different storage locations (local buffer or other access points). This segmentation allows the wireless terminal to acquire different parts through parallel or efficient sequential access, resolving the contradiction between completing full data transfer and minimizing transfer time.
2Productivity
If object information is divided and stored in multiple access points, then the data acquisition speed is improved, but the system complexity increases
Solution Approach 1:
Multiple access points are merged into a cooperative system where they share buffer resources and coordinate data storage. Instead of each access point operating independently, they function as a unified distributed storage system, managing object information parts collectively. This merging reduces individual device complexity while enabling faster data acquisition through parallel access to distributed segments.
Data Source
AI summary
A relay device relays a signal between a first network and a second network. The relay device includes a first circuitry to wirelessly communicate with a wireless terminal over the first network and communicate with a first relay device over the second network. The relay device includes a second circuitry to detect a communication request transmitted by the wireless terminal. The relay device includes a third circuitry to decide whether relay of object information corresponding to the communication request is able to be completed with the wireless terminal while the wireless terminal stays within a wireless communication range of the relay device, and causes the first circuitry to transmit a request signal to request to relay a part or a whole of the object information to the first relay device instead of said relay device when a result of decision indicates that the relay is not able to be completed.