Wireless Relay Apparatus Route Verification
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Solution Overview
Problem
Conventional wireless relay apparatuses waste wireless medium resources by transferring IP packets without ensuring a route to the final destination is established, leading to inefficient use of wireless resources.
Innovation Solution
Incorporating a processor that determines whether a route is established before transferring IP packets, and if not, either transfers packets to the correct relay apparatus or does not transfer them, optimizing the use of wireless resources by limiting transmission to control packets for route establishment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If IP packets are transferred without checking route establishment, then data transmission can proceed at MAC layer speed, but wireless medium resources are wasted by transferring packets that cannot reach the final destination
Solution Approach 1:
The patent applies preliminary action by checking whether a route to the final destination is established before transferring IP packets through the wireless medium. The relay apparatus determines route establishment status in advance using routing protocols (RIP, OSPF, BGP, or MPLS) before allowing MAC layer transmission, preventing waste of wireless resources on packets that cannot reach their destination.
2Loss of energy
If route establishment checking is implemented before IP packet transfer, then wireless medium resources are optimized, but additional processing steps are required
Solution Approach 1:
The patent implements multi-functionality by integrating multiple routing protocols (RIP, OSPF, BGP, and MPLS) into a single relay apparatus that can handle both routing determination and MAC layer transmission. This universal design allows the apparatus to perform route checking and packet forwarding functions within one device, managing complexity through standardized protocol implementation.
Data Source
AI summary
According to one embodiment, a wireless relay apparatus includes a first MAC processor, a second MAC processor and a processor. The processor determines whether a route for relaying an IP packet via at least one of a first wireless apparatus and a second wireless apparatus is established. The processor, if a first IP packet is received before the route is established, and if the destination of the first IP packet is not the first wireless apparatus or the second wireless apparatus, and if the first IP packet is further transferred by the first wireless apparatus or the second wireless apparatus, does not transfer the first IP packet to the first wireless apparatus or the second wireless apparatus.