Control Frame Transmission Using Advanced Line Encoding Recovery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing interconnection protocols, such as UFS, face limitations in achieving higher effective data rates due to the overhead of 8b/10b coding, and lack robust error recovery mechanisms for advanced line encoding.
Innovation Solution
Implementing an advanced line encoding (ALE) scheme with reduced overhead coding schemes like 128b/130b, and error recovery operations for physical adapter control protocol (PACP) frame re-transmission, combined with multi-level signaling schemes like PAM-n, to enhance data throughput and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If 8b/10b coding is used for line encoding, then DC balance is achieved, but effective data rate is reduced due to 20% overhead
Solution Approach 1:
The patent changes the line encoding parameter from traditional 8b/10b coding to 6b/8b coding, reducing the overhead from 20% to approximately 25% while maintaining DC balance through controlled transition density. This parameter change directly addresses the contradiction by optimizing the coding ratio to achieve better effective data rate while preserving the essential DC balance property required for reliable transmission.
2Productivity
If advanced line encoding with reduced overhead is implemented, then effective data rate increases, but error recovery robustness decreases
Solution Approach 1:
The patent implements error recovery mechanisms that prepare cushioning measures in advance by monitoring transmission quality and having retry protocols ready. When errors occur in the advanced line encoding mode, the system can recover by retransmitting affected data blocks, providing beforehand cushioning against potential errors while maintaining the high effective data rate benefits of reduced overhead coding.
Solution Approach 2:
The patent incorporates feedback mechanisms where the receiving end monitors transmission errors and sends acknowledgment signals back to the transmitting end. This feedback loop enables real-time error detection and triggers automatic retransmission of corrupted data blocks, thereby maintaining reliability despite using advanced line encoding with reduced overhead.
3Productivity
If burst mode transmission is used for control frames, then transmission efficiency improves, but frame synchronization becomes more difficult
Solution Approach 1:
The patent uses distinctive frame synchronization patterns that act as unique identifiers, allowing the receiving end to easily detect and identify frame boundaries despite the burst mode transmission. These synchronization patterns provide clear visual-like distinctions (analogous to color changes) that enable reliable frame detection and synchronization, thereby resolving the contradiction between transmission efficiency and synchronization difficulty.
Data Source
AI summary
Method for control protocol frame transmission and electronic device are provided. The method comprises following operations. By the electronic device operating in an advanced line encoding mode and having a first burst from the electronic device to the other electronic device, the first burst is closed and a second burst is opened from the electronic device to the other electronic device for request frame transmission, wherein the electronic device operating in the advanced line encoding mode is configured to transmit data by using an advanced line encoding having an effective data rate larger than an effective data rate of 8b/10b encoding. By the electronic device, a request frame is transmitted in the second burst.