Radio Communication System Transmission Time Limit Notification
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Solution Overview
Problem
Conventional radio communication systems face challenges in synchronizing multiple devices for intermittent operations, leading to inefficient power consumption as devices remain in standby mode until a communication partner can transmit a beacon or ID, even if the transmission time limit is exceeded, resulting in unnecessary power wastage.
Innovation Solution
A radio communication system that includes a transmission-source apparatus and a destination apparatus, where the transmission-source integrates and estimates transmission times to notify the destination of potential transmission time limits, allowing the destination to stop standby operations and reduce power consumption by anticipating when a communication partner cannot transmit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If radio communication apparatuses perform intermittent operation with beacon periods to reduce power consumption, then power consumption is reduced, but synchronization difficulty increases when a large number of apparatuses are present
Solution Approach 1:
The system performs preliminary actions by establishing master-slave relationships and scheduling transmission slots in advance. The master apparatus pre-assigns transmission opportunities to slave apparatuses, eliminating the need for continuous beacon exchange and synchronization attempts, thus reducing both power consumption and synchronization complexity.
Solution Approach 2:
The system implements periodic action through structured superframes containing beacon periods and transmission slots. This periodic structure allows apparatuses to enter sleep modes between active periods, reducing power consumption while maintaining systematic synchronization through the recurring superframe pattern.
2Productivity
If a limit is provided for the sum of transmission times per unit time, then transmission time management is improved, but beacon or ID cannot be temporarily transmitted when the limit is exceeded
Solution Approach 1:
The master apparatus performs preliminary action by notifying slave apparatuses in advance when the transmission time limit will be exceeded. This allows slave apparatuses to proactively stop their standby operations before the limit is reached, ensuring reliable communication management without forcing beacon transmission failures.
Solution Approach 2:
The system implements feedback by having the master apparatus monitor and communicate transmission time status to slave apparatuses. This feedback mechanism enables dynamic adjustment of standby operations based on current transmission time consumption, ensuring the limit is respected while maintaining system reliability.
3Reliability
If radio communication apparatuses continue standby state until a communication partner transmits beacon or ID, then connection reliability is maintained, but power consumption increases unnecessarily when transmission time limit is exceeded
Solution Approach 1:
The master apparatus performs preliminary notification to inform slave apparatuses when transmission time limits will be exceeded. This allows slave apparatuses to stop their standby operations in advance, maintaining connection reliability through proper notification while eliminating unnecessary power consumption from continued standby.
Solution Approach 2:
The system implements self-service by enabling slave apparatuses to autonomously stop their standby operations based on notifications from the master apparatus. This self-service mechanism allows each apparatus to manage its own power consumption appropriately without requiring continuous active monitoring, thus reducing overall power consumption while maintaining reliability.
Data Source
AI summary
A transmission-source radio communication apparatus includes a transmission-time-sum integrating unit integrating transmission time per unit time of a radio frame, a transmission-time estimating and integrating unit estimating and integrating the transmission time per unit time in the future of a radio device number frame, a transmission-limit-time-of-day estimating unit estimating, using two integration results, a sum-limit-exceeding estimated time of day and a less-than-sum-limit estimated time of day, and a transmission control unit notifying a destination radio communication apparatus of the two estimated times of day. The destination radio communication apparatus includes a reception control unit determining, using the two estimated times of day, whether reception of a radio frame from the transmission-source radio communication apparatus is stopped and a transmission control unit determining, using the two estimated times of day, whether transmission of a radio frame to the transmission-source radio communication apparatus is stopped.