Radio Head Deframing for Ethernet Sync Error Recovery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Loss of synchronization between a central controller and radio heads due to errors in Ethernet packets transmitted over Ethernet links leads to system restarts and recalibration, consuming power and causing delays.
Innovation Solution
Incorporating a deframer in both the central controller and radio heads to detect errors in Ethernet packets and alter them to maintain synchronization, ensuring continuous data transmission and avoiding system recalibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If error detection is performed on Ethernet packets, then transmission reliability is improved, but system complexity increases due to additional error handling mechanisms
Solution Approach 1:
A deframer component is introduced as an intermediary between the Ethernet packet receiver and the synchronization mechanism. The deframer detects packet errors and alters erroneous packets to maintain synchronization, preventing system restarts while managing complexity through a dedicated error-handling module.
Solution Approach 2:
The system performs self-correction by automatically detecting and altering erroneous packets without external intervention. The deframer identifies synchronization-threatening errors and corrects them in real-time, allowing the system to maintain operation without manual recalibration or restarts.
2Reliability
If system restart and recalibration are performed to recover synchronization, then synchronization reliability is improved, but power consumption increases and transmission delays occur
Solution Approach 1:
The deframer performs preliminary error detection and correction on incoming packets before they can cause synchronization loss. By identifying and altering erroneous packets in advance, the system prevents the need for costly restarts and recalibration operations that consume power and cause delays.
Solution Approach 2:
The system converts potentially harmful erroneous packets into beneficial corrected packets. Instead of allowing errors to propagate and cause synchronization loss requiring power-intensive restarts, the deframer transforms erroneous packets into valid synchronization-maintaining packets, turning a negative into a positive outcome.
3Reliability
If system restart and recalibration are performed to recover synchronization, then synchronization reliability is improved, but transmission delays occur
Solution Approach 1:
The deframer ensures continuous synchronization by maintaining uninterrupted packet processing. Error detection and correction occur seamlessly in the data path without interrupting the transmission flow, eliminating the stops and restarts that would otherwise cause transmission delays while maintaining synchronization reliability.
Data Source
AI summary
The present disclosure discloses a system including a controller and a plurality of radio heads communicatively coupled to the controller. The controller transmits a synchronization signal to each of the radio heads to synchronize the local clocks in the radio heads to a master clock in the controller. The controller also transmits packets to the radio heads. Each of the radio heads includes a deframer. For a radio head, upon detecting that a received packet from the controller includes an error, the deframer alters the received packet to maintain the synchronization between the controller and the radio head and transmits data contained within the altered packet.