Relaying Apparatus Beacon Channel Switching
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Solution Overview
Problem
Wireless communication systems face challenges in rapidly and stably switching wireless channels when the communication situation abruptly deteriorates, leading to interference and instability due to the inability of wireless terminal apparatuses to receive updated channel information from relaying apparatuses.
Innovation Solution
A wireless communication system where a relaying apparatus stores and transmits switching destination information within a beacon signal, allowing both the relaying apparatus and wireless terminal apparatuses to switch channels based on this information when a communication situation deteriorates, ensuring rapid and stable channel switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the relaying apparatus transmits switching destination information in a beacon signal, then the wireless terminal apparatus can rapidly switch channels when communication deteriorates, but the beacon signal transmission occupies additional communication resources and increases signal complexity
Solution Approach 1:
The relaying apparatus pre-calculates and stores switching destination information for multiple potential current channels in advance. When a channel switch is needed, the terminal apparatus can immediately retrieve the pre-computed switching information from the beacon signal without performing complex real-time calculations, thus achieving rapid channel switching while keeping the signal structure relatively simple.
2Reliability
If the wireless terminal apparatus stores switching destination information locally, then it can autonomously switch channels without continuous beacon signal reception, but the initial acquisition of switching information requires reliable beacon signal reception which may not be available when communication deteriorates
Solution Approach 1:
The terminal apparatus acquires and stores switching destination information in advance during periods when communication is stable and beacon signals are reliably received. This stored information is then used autonomously when communication deteriorates, eliminating the need to receive beacon signals during critical switching moments and ensuring reliable channel switching even when beacon reception fails.
3Adaptability or versatility
If the relaying apparatus performs channel switching based on real-time communication situation assessment, then the switching can adapt to current conditions, but the switching response time is delayed due to the time required for situation assessment and beacon signal transmission
Solution Approach 1:
The relaying apparatus pre-calculates switching destination information for multiple potential current channels in advance and includes this information in beacon signals. When communication deterioration is detected, the terminal apparatus can immediately switch to the pre-determined channel using the stored switching information, eliminating the need for real-time assessment during the switching process and significantly reducing response time while maintaining adaptability.
4Productivity
If the wireless communication system uses traditional channel switching methods without pre-stored switching information, then the system structure remains simple, but the channel switching cannot be performed rapidly when communication situation deteriorates abruptly
Solution Approach 1:
The system incorporates a storage function in the terminal apparatus to save switching destination information received from beacon signals. This allows the terminal to perform rapid channel switching by retrieving pre-stored information without complex real-time calculations, significantly improving switching efficiency while adding only moderate complexity through the storage and retrieval mechanism.
Data Source
AI summary
In a wireless communication system including a plurality of wireless terminal apparatuses and a relaying apparatus, the relaying apparatus performs a channel search to select a wireless channel in a good communication situation when the relaying apparatus transmits a beacon signal at a constant period, and transmits switching destination information to be used to switch the wireless channel to the selected one in a state of being stored in the beacon signal. When the communication situation of the wireless channel has deteriorated, the relaying apparatus switches the wireless channel being used by the communication section to the selected one based on the switching destination information. When the communication situation of a wireless channel of the wireless terminal apparatus has deteriorated, the wireless terminal apparatus switches the wireless channel to the selected one based on the switching destination information.