Sync Signal Retransmission for Faster Communication Resynchronization
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Solution Overview
Problem
Conventional communication devices experience prolonged synchronization downtime when synchronization packets are received at abnormal intervals, leading to delayed synchronization processes.
Innovation Solution
A communication device and system that include a synchronization signal receiver, determiner, processor, and additional transmission requester to assess and request immediate retransmission of synchronization signals when abnormal, allowing for quick synchronization without waiting for the next scheduled interval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conventional communication device rejects abnormal synchronization packets and waits for the next regular interval, then synchronization timing is protected from disturbance, but synchronization downtime is prolonged
Solution Approach 1:
The system dynamically adjusts the synchronization packet reception strategy based on the abnormality determination result. When abnormality is detected, the system transitions from a static periodic reception mode to an active request-retransmission mode, enabling adaptive response to synchronization issues while maintaining timing accuracy through the determiner's validation
Solution Approach 2:
The synchronization determiner provides feedback about the abnormality of received synchronization packets to the additional transmission requester. This feedback mechanism enables the system to identify problematic packets and trigger appropriate corrective actions (requesting retransmission) rather than passively waiting for the next periodic packet, thus reducing synchronization downtime while maintaining reliability through validation
2Stability of the object's composition
If the communication device uses a filter to reject synchronization packets received at abnormal timing, then synchronization timing stability is maintained, but synchronization speed decreases
Solution Approach 1:
The system performs preliminary determination of synchronization packet abnormality using the synchronization determiner before deciding whether to reject or process the packet. This preliminary action allows the system to distinguish between genuinely harmful packets and those that can be corrected through retransmission, enabling faster recovery while maintaining timing stability through the determiner's preliminary validation
Solution Approach 2:
The system changes the operational parameter from passive periodic reception to active request-retransmission mode when abnormality is detected. This parameter change enables the system to maintain timing stability through the determiner's validation while significantly improving synchronization speed by avoiding prolonged waiting periods
Data Source
AI summary
A communication device 2 according to the present disclosure includes (i) a synchronization signal receiver 203 to receive a synchronization signal from a master device 1 that has a reference time and transmits the synchronization signal every synchronization period, (ii) a synchronization signal determiner 210 to determine whether the synchronization signal is normal or abnormal, (iii) a synchronization processor 211 to perform, when the synchronization signal is determined to be normal by the synchronization signal determiner, synchronization processing based on the synchronization signal determined to be normal, and (iv) an additional transmission requester 214 to request the master device to additionally transmit the synchronization signal before transmitting the synchronization signal during a next period when the synchronization signal is determined to be abnormal by the synchronization signal determiner.