FEC Packet Header Fragmentation for Lower Mobile Signaling Overhead
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Solution Overview
Problem
Mobile communication systems face data loss due to transmission packet loss, particularly in high-capacity content transmission, leading to increased signaling overhead and reduced radio resource efficiency in Forward Error Correction (FEC) packet transmission/reception processes.
Innovation Solution
The method involves fragmenting FEC delivery block-oriented header information into multiple payload headers within FEC packets, allowing for efficient transmission and reception of Application Layer (AL)-FEC signaling information, reducing signaling overhead and enhancing radio resource efficiency by applying packet-oriented header information to related payloads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If FEC delivery block oriented header information is included in every FEC packet, then error correction capability is enhanced, but signaling overhead increases and radio resource efficiency decreases
Solution Approach 1:
The FEC delivery block oriented header information is segmented and distributed across multiple FEC packets within the delivery block. Instead of duplicating the complete header in every packet, the header information is divided and placed in specific packets, reducing redundant signaling while maintaining the ability to reconstruct the full header at the receiver for error correction purposes.
Solution Approach 2:
The FEC delivery block oriented header information serves multiple functions: it provides error correction capability for the entire delivery block and simultaneously acts as signaling information for packet reconstruction. By optimizing its placement and distribution, the same header information fulfills both error correction and signaling roles efficiently.
2Reliability
If FEC delivery block oriented header information is included in every FEC packet, then error correction capability is enhanced, but transmission/reception process delay increases
Solution Approach 1:
The header information is segmented across packets, reducing the amount of processing required at each packet level. The receiver only needs to process and reconstruct the header from specific packets rather than processing complete header information from every packet, thereby reducing transmission and reception delays.
3Reliability
If complete header information is transmitted in every FEC packet, then packet reception reliability is improved, but radio resource efficiency is reduced
Solution Approach 1:
Header information is segmented and placed only in specific FEC packets rather than being transmitted in every packet. This segmentation reduces redundant transmission of the same information, conserving radio resources while maintaining the ability to reconstruct complete header information at the receiver for reliable packet processing.
Solution Approach 2:
The header information is merged with the FEC delivery block structure, where it serves as part of the overall error correction mechanism. By combining the header transmission with the FEC encoding process, the system achieves both reliable packet reception and efficient radio resource utilization.
Data Source
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.