AL-FEC Header Fragmentation for Efficient Mobile Packet Recovery
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Solution Overview
Problem
In mobile communication systems, the transmission and reception of Forward Error Correction (FEC) packets result in significant signaling overhead due to header processing, leading to increased packet loss and reduced radio resource efficiency.
Innovation Solution
The proposed method involves fragmenting FEC packet block-oriented information into multiple FEC packet headers, allowing only essential information to be transmitted in each packet, thereby reducing signaling overhead and enabling efficient FEC packet transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If FEC packet headers include complete AL-FEC signaling information for each packet, then error correction capability is improved, but signaling overhead increases and radio resource efficiency deteriorates
Solution Approach 1:
The patent segments the FEC packet block into multiple packets and divides the AL-FEC signaling information into different parts, placing only necessary header information in each packet header rather than complete signaling information. This segmentation reduces the signaling overhead in each individual packet while maintaining the overall error correction capability through the distributed signaling information across the packet block.
2Reliability
If complete header information is transmitted in every FEC packet, then packet reception reliability is improved, but transmission efficiency and radio resource utilization worsen
Solution Approach 1:
The patent extracts and removes redundant header information from individual FEC packet headers, keeping only the essential signaling information required for each packet. The complete AL-FEC signaling information is reconstructed at the receiver by combining the extracted parts from multiple packets, thereby improving transmission efficiency while maintaining packet reception reliability.
3Reliability
If AL-FEC signaling information is transmitted in every packet header, then error correction functionality is improved, but process delay and signaling overhead increase
Solution Approach 1:
The patent merges the AL-FEC signaling information across multiple packet headers by distributing different parts of the signaling information to different packets. At the receiver, these distributed signaling parts are combined to reconstruct the complete error correction functionality, reducing the redundant transmission of complete signaling information in every packet and thereby decreasing process delay.
Data Source
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AI summary
An apparatus and method for transmitting/receiving a Forward Error Correction (FEC) packet in a mobile communication system are provided. In the FEC packet transmission method, an FEC packet transmission apparatus transmits an FEC delivery block to an FEC packet reception apparatus. The FEC delivery block includes N payloads. Each of the N payloads includes a payload header. Each payload header included in each of C payloads among the N payloads includes packet oriented header information and an FEC delivery block oriented header information fragment. The packet oriented header information is applied to a related payload, and the FEC delivery block oriented header information fragment is generated by fragmenting FEC delivery block oriented header information applied to the N payloads.