Codeword Self-Synchronization Without Alignment Markers
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Solution Overview
Problem
Current codeword synchronization methods in communication technologies require the insertion of alignment markers, which adds redundant information and limits data transmission efficiency.
Innovation Solution
A self-synchronization method for codeword synchronization that determines the synchronization position without inserting alignment markers, using a state machine to verify and re-determine the synchronization position if necessary, thereby saving transmission resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an alignment marker sequence is inserted at an interval of a codeword to enable codeword synchronization, then the receiver can identify the synchronization position, but redundant information is added to the data stream
Solution Approach 1:
The system uses the existing codeword structure and data patterns to perform self-synchronization. The receiver analyzes the received data sequence to identify codeword boundaries without external alignment markers, allowing the data stream to synchronize itself using its inherent structure.
Solution Approach 2:
The alignment marker sequence is completely removed from the system. Instead of inserting external synchronization signals, the invention extracts and utilizes the natural boundaries and patterns already present in the codeword structure to achieve synchronization.
2Reliability
If codeword synchronization is implemented using traditional alignment marker methods, then synchronization can be achieved, but transmission resources are wasted due to redundant data insertion
Solution Approach 1:
The synchronization mechanism serves itself by using the codeword's inherent structure, checksum fields, and data patterns to identify boundaries. No external synchronization resources are needed, as the codeword structure contains all necessary information for self-identification.
Solution Approach 2:
The codeword structure serves multiple functions simultaneously: data transmission, error detection, and synchronization. The same data fields used for information transmission also provide the basis for identifying codeword boundaries, eliminating the need for separate synchronization resources.
3Ease of operation
If a fixed alignment marker sequence is inserted for synchronization, then the synchronization process is simplified, but the data stream contains redundant information that reduces effective transmission capacity
Solution Approach 1:
The receiver automatically identifies codeword boundaries by analyzing the received data sequence against known codeword structures, patterns, and validation rules. This self-identifying mechanism maintains operational simplicity without requiring external alignment markers.
Solution Approach 2:
The invention changes the approach from using fixed external parameters (alignment markers) to using dynamic analysis of data patterns, checksums, and structural characteristics. The synchronization process adapts to the actual data being transmitted rather than relying on predetermined marker sequences.
Data Source
AI summary
A codeword synchronization method includes: entering a synchronization position determining state in response to a start signal; determining a synchronization position in a received data sequence in the synchronization position determining state, where the synchronization position indicates a start position of a codeword in the data sequence; entering a loss-of-lock detection state in response to determining the synchronization position; verifying, in the loss-of-lock detection state, a plurality of codewords selected based on the synchronization position; and re-entering the synchronization position determining state in response to a verification failure.