Joint Retransmission and Frame Synchronization for Error Resilience
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing video communication systems face challenges in error resilience, particularly in combining packet retransmission and synchronized frame requests, which incur delays and inefficiencies in adapting to varying network conditions.
Innovation Solution
Implementing a joint control mechanism that sets up time-out values for retransmission and frame synchronization, allowing for real-time monitoring and adaptive decision-making on packet retransmission and synchronized frame requests, optimizing end-to-end delay and network bandwidth usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If packet retransmission and synchronized frame requests are used independently, then error resilience is improved, but end-to-end delay increases and network bandwidth is wasted
Solution Approach 1:
The patent combines packet retransmission and synchronized frame requests into a single joint control mechanism. The receiver sends a joint control message that includes both retransmission requests and synchronized frame requests simultaneously, allowing the sender to process and respond to both types of requests in one operation. This merging eliminates redundant delays and optimizes network resource utilization while maintaining error resilience.
Solution Approach 2:
The patent implements preliminary action by setting up time-out values in advance for both retransmission and synchronized frame requests. The receiver calculates and transmits these time-out values with the joint control message, allowing the sender to pre-configure response timing. This preliminary setup enables more efficient coordination and reduces overall delay by avoiding sequential waiting periods.
2Ease of operation
If separate control mechanisms are used for retransmission and frame synchronization, then implementation simplicity is maintained, but network bandwidth efficiency decreases
Solution Approach 1:
The patent merges separate control mechanisms into a unified joint control approach where retransmission requests and synchronized frame requests are transmitted together in a single message. This consolidation reduces the number of separate network transmissions required, thereby decreasing network bandwidth consumption while maintaining manageable implementation complexity through structured message formatting.
Solution Approach 2:
The joint control message serves multiple functions simultaneously: it carries retransmission requests, synchronized frame requests, and time-out values all in one transmission. This multi-functionality reduces redundant network traffic and optimizes bandwidth utilization while keeping the control mechanism versatile enough to handle various error conditions.
3Speed
If time-out values are not set for joint control, then response speed is faster, but error resilience control becomes ineffective
Solution Approach 1:
The patent applies preliminary action by pre-calculating and transmitting time-out values with the joint control message. These time-out values are established in advance based on network conditions and error resilience requirements, enabling the sender to configure response timing before actual error recovery operations begin. This preliminary setup ensures both rapid response and effective error resilience control.
Solution Approach 2:
The time-out values transmitted in the joint control message create a feedback mechanism where the receiver provides timing information about expected responses. The sender uses this feedback to adjust transmission timing and retransmission strategies, ensuring that error resilience control remains effective while maintaining optimal response speed through adaptive timing rather than fixed delays.
Data Source
AI summary
A method for controlling error resilience in network communication is described. The method includes: determining, by a receiver-side controller, a packet gap representing a packet loss of a packet being communicated over a network; projecting, by the receiver-side controller, a retransmission time-out for at least one missing packet of the packet loss; issuing, by the receiver-side controller, a retransmission request for the at least one missing packet; if the packet gap is not filled within a first time period of the retransmission time-out, then issuing, by the receiver-side controller, at least one synchronization frame request; and selecting, by a sender-side controller, to respond to at least one of either of the retransmission request or the at least one synchronization frame request and neither of the retransmission request nor the at least one synchronization frame request.