Wireless Data Packet Sub-Header Optimization for LTE Transmission
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Solution Overview
Problem
Existing header structures in wireless communication networks are inefficient, leading to high overheads and suboptimal utilization of transmission time intervals due to excessive fields, inadequate handling of segmented data packets, and unnecessary 'F' fields, which hinder effective data transmission.
Innovation Solution
The proposed solution optimizes the header structure by generating sub-headers for component data packets with specific information like original data packet ID, segmentation processing ID, and data amount ID, and reduces header overheads by selectively deleting segmentation processing IDs, thereby improving the utilization of transmission time intervals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional header structures are used to indicate component data packets, then the receiver can identify data segments, but the header occupies excessive bits and reduces transmission efficiency
Solution Approach 1:
The patent extracts and removes unnecessary fields (such as the 'F' field and redundant segmentation indication fields) from the traditional header structure. By taking out these redundant elements, the header occupies fewer bits, allowing more transmission time interval to be utilized for actual data transmission, thus resolving the contradiction between reliable identification and transmission efficiency
Solution Approach 2:
The patent designs a unified header structure that serves multiple functions: indicating component data packets, identifying segmentation information, and providing data amount information, all within a compact format. This multi-functional header reduces the need for separate fields, thereby reducing overall header overhead while maintaining reliable data packet identification
2Measurement precision
If multiple fields are added to the header to indicate component data packets, then parsing accuracy improves, but header overhead increases and TTI utilization decreases
Solution Approach 1:
The patent merges multiple functions into a single compact header structure. Instead of using separate fields for component indication, segmentation information, and data amount, the invention combines these into an integrated header format that maintains parsing accuracy while minimizing overhead, thus improving TTI utilization
Solution Approach 2:
The patent changes the parameter representation in the header by using more efficient encoding methods. For example, using variable-length encoding for data amount information and bit-manipulation techniques for component indication, the header achieves the required parsing accuracy with fewer bits, thereby increasing transmission productivity
3Reliability
If the header structure includes unnecessary 'F' fields for each data segment, then segmentation indication is complete, but header size increases and transmission efficiency decreases
Solution Approach 1:
The patent removes the unnecessary 'F' field and other redundant segmentation indication fields from the header structure. By extracting these superfluous elements, the header maintains the essential segmentation indication functionality while significantly reducing its size and complexity, thus improving transmission efficiency
Solution Approach 2:
The patent discards redundant header fields that do not contribute to essential functionality. The segmentation information is recovered and maintained through alternative means (such as position-based identification and compact flags), allowing the system to function correctly with a simplified header structure
4Loss of information
If TSN or SSN are used in the header, then data packet tracking is possible, but header overhead becomes large and TTI utilization is reduced
Solution Approach 1:
The patent changes the parameter representation by replacing TSN/SSN with more efficient identification methods. The invention uses compact flags, position-based indexing, and bit-manipulation techniques that require fewer bits while maintaining data packet tracking capability, thus reducing header overhead and improving TTI utilization
Data Source
AI summary
The present invention provides a method and corresponding device of processing and parsing a to-be-transmitted data packet in a communication network, such as a LTE system. A sub-header that is used for a header portion of a transmitted data packet is generated for each component data packet constituting the transmitted data packet, containing: original data packet ID for indicating an original data packet which the component data packet belongs to; segmentation processing ID for indicating times of segmentation happened to the original data packet in order to the component data packet, and a data segment which said component data packet belongs to after each segmentation; data amount IF for indicating a data amount of a data portion of the data packet. With the technical solution provided by the present invention, the header structure definition of a data packet is optimized, and the transmission resource utilization efficiency is improved.