Wireless Relay Address Field Management for Dynamic Routing
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Solution Overview
Problem
Conventional wireless relay communication systems fail to effectively relay data when the final wireless relay terminal is undetermined or changes, especially when a terminal in power save mode exists, leading to improper routing information updates and system dysfunction.
Innovation Solution
A wireless communication apparatus stores addresses of multiple communication devices, including those with relay functions, and transmits frames with specific address fields to handle situations where the final relay terminal is unknown or has changed, ensuring data relay by updating address fields dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional relay techniques are used, then data relay can be performed when the final relay terminal is determined, but the system cannot relay data when the final relay terminal is undetermined or changes
Solution Approach 1:
The wireless relay communication terminal stores addresses of multiple other wireless communication apparatuses in advance, including those with relay functions. When the final relay terminal is undetermined or changes, the system can immediately use the pre-stored address information to continue data relay without waiting for routing information updates, thus resolving the contradiction between adaptability and reliability.
Solution Approach 2:
The patent introduces dynamic address field management where the second address field can be set to either a specific value or an address of another wireless communication apparatus. This dynamic configuration allows the system to adapt to changing network conditions and terminal connections, enabling reliable data relay even when routing information is not fully updated.
2Adaptability or versatility
If routing information is updated dynamically, then the system can adapt to terminal changes, but power save mode terminals cannot properly receive updated routing information
Solution Approach 1:
Wireless relay communication terminals perform preliminary actions by storing addresses of other relay-capable terminals in advance. This allows the system to maintain routing functionality even when power save mode terminals are present, as the stored address information enables continued operation without requiring real-time routing updates to be delivered to sleeping terminals.
Solution Approach 2:
The patent uses the pre-stored address information as an intermediary mechanism that bridges the gap between dynamic routing needs and static power save states. This intermediary approach allows routing decisions to be made without requiring active communication with power save terminals, thus maintaining reliability while preserving power saving capabilities.
3Adaptability or versatility
If the final relay terminal changes due to additional connections, then network flexibility improves, but conventional systems cannot handle such changes
Solution Approach 1:
The patent segments the address management into distinct fields: a first address field for the direct transmission destination and a second address field for the final relay terminal. The second address field can be set to a specific value or contain the address of another wireless communication apparatus. This segmentation allows flexible handling of terminal changes without overwhelming complexity, as each field has a specific function and the system can selectively update only the necessary fields.
Data Source
AI summary
A wireless communication apparatus having a relay function comprises a memory to store an address of a first wireless communication apparatus connected to the wireless communication apparatus and having a relay function, and a transmitting unit configured to transmit a first relay frame addressed to the first wireless communication apparatus, the first relay frame including a first address field prepared for a final destination address, an address of a second communication apparatus not connected to the wireless communication apparatus being set in the first address field, and a second address field prepared for an address of a third wireless communication apparatus connecting the second communication apparatus and having a relay function, one of an address except for the address of the third wireless communication apparatus and a specific value being set in the second address field.