Fragment Acknowledgement Transmission via Immediate Feedback
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Solution Overview
Problem
In fragment receiving and transmitting processes, the delay caused by channel competition and occupation by other nodes leads to inefficiencies, as receivers must wait to transmit acknowledgement messages, affecting transmission reliability and efficiency.
Innovation Solution
Implementing a method where acknowledgement messages are transmitted immediately after receiving a group of fragments through the current channel, allowing for the suspension of subsequent fragment transmission and enabling back-to-back negative-acknowledgement messages to handle errors or channel changes, thereby ensuring timely acknowledgement and improving transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the receiver waits to transmit acknowledgement messages after receiving fragments, then transmission reliability is maintained through proper acknowledgment, but transmission efficiency deteriorates due to channel competition delays
Solution Approach 1:
The receiver transmits the acknowledgement message immediately after receiving the fragment group, performing the acknowledgment action in advance before channel competition could occur. This eliminates the waiting period and ensures timely feedback to the transmitter about fragment reception status.
Solution Approach 2:
The acknowledgement message transmission is performed continuously and immediately following fragment reception, without interruption or delay for channel competition. This maintains the flow of communication and prevents gaps in the transmission-reception-acknowledgment cycle.
2Productivity
If the receiver transmits acknowledgement messages immediately after receiving fragments, then transmission efficiency is improved by avoiding channel competition delays, but transmission reliability may worsen if acknowledgements are sent before proper verification
Solution Approach 1:
The system performs preliminary reception of the fragment group and immediately follows with acknowledgement transmission. The acknowledgement is sent as the next immediate action after reception, ensuring no channel competition delay while maintaining proper sequence.
Solution Approach 2:
The immediate acknowledgement message provides real-time feedback to the transmitter about the reception status of the fragment group. This feedback mechanism operates continuously without delay, allowing the transmitter to adjust its transmission strategy based on actual reception conditions.
Data Source
AI summary
Embodiments of the present invention provide a method and apparatus for receiving fragments as well as a method and apparatus for transmitting fragments. The method for receiving fragments includes: receiving a group of fragments from a transmitter through a first channel, where the transmitter suspend transmitting a next group of fragments after the group of fragments is transmitted; and transmitting one or a plurality of first acknowledgement messages to the transmitter through the first channel immediately after the group of fragments are received. According to embodiments of the present invention, the acknowledgement messages may be immediately transmitted to the transmitter through a current channel after one group of fragments are received through the current channel, thereby avoiding the delay of a fragment receiving and transmitting process, which is caused by the competition and occupation of the channel by other nodes, and thus improving transmission efficiency.