Radio Communication Slot Securing for Resource-Constrained Networks
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Solution Overview
Problem
Existing radio communication systems, including ultra-wideband (UWB) systems, face challenges in efficiently allocating resources when the network is short of available frequency bands, leading to delays in starting communication as they must wait for scarce resources to be released.
Innovation Solution
The proposed solution involves a radio communication apparatus with a first and second reservation slot securing unit, which secures communication slots through adjustments in periodically formed beacon slots and utilizes signal strength variation values to manage band allocation, allowing communication to start without releasing existing reservation bands or forming new groups, even in resource-constrained situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the existing radio communication system waits for scarce resources to be released, then the resource allocation becomes stable, but the communication initiation time is delayed
Solution Approach 1:
The patent applies preliminary action by having the radio communication apparatus perform reservation slot securing in advance before actual communication is needed. The apparatus secures reservation slots during beacon slots when the network is in a stable state, so that when communication initiation is required, the reserved slots are already prepared and can be immediately used, eliminating the need to wait for resource release.
Solution Approach 2:
The patent applies dynamics by enabling the transmission output to dynamically adjust between different levels (first transmission output and second transmission output smaller than the first). When reservation slots are secured, the apparatus uses the first transmission output for normal communication. When resources are scarce and reservation securing fails, the apparatus switches to the second transmission output with reduced power, allowing flexible adaptation to varying network conditions and avoiding complete communication delay.
2Stability of the object's composition
If the radio communication apparatus waits for resource release, then existing reservations are maintained, but new communication cannot start immediately
Solution Approach 1:
The patent applies preliminary action by performing reservation slot securing during beacon slots before communication is actually needed. The apparatus proactively secures reservation slots when the network is stable, so that when communication initiation is required, the reserved slots are already prepared and can be immediately used, eliminating the need to wait for resource release and maintaining both existing reservations and new communication capability.
Solution Approach 2:
The patent applies parameter changes by modifying the transmission output parameter based on reservation securing success. When reservation slots are successfully secured, the apparatus uses the first transmission output for normal communication. When resources are scarce and reservation securing fails, the apparatus changes the transmission output parameter to use the second transmission output with reduced power, allowing flexible adaptation to varying network conditions.
Data Source
AI summary
According to one embodiment, a radio communication apparatus includes a first reservation slot securing unit, a second reservation slot securing unit and a radio communication unit. The first reservation slot securing unit secures a first reservation slot for performing radio communication through a first transmission output in a radio communicable slot to be shared in time division in a group by adjustment in periodically formed beacon slots. The second reservation slot securing unit secures a second reservation slot for performing radio communication through a second transmission output smaller than the first transmission output in the radio-communicable period, when the first reservation slot securing unit fails in securing the first reservation slot. And the radio communication unit performs radio communication through the first transmission output or the second transmission output by using at least either the first reservation slot or the second reservation slot.